Document ID: 50106
Contents
Introduction
Prerequisites
Requirements
Components Used
Conventions
FRSM-8T1-to-FRSM-8T1 Three-Segment Connection
Network Diagram
Configuring the FRSM Interfaces
Configuring the Router Interfaces
Building the FRSM-to-Trunk Connections
Building the Trunk-to-Trunk Connection
Verifying the Configuration
Caveats
CESM-8E1-to-CESM-8E1 UDT Three-Segment Connection
Network Diagram
Configuring the CESM Interfaces
Configuring the Router Interfaces
Building the CESM-to-Trunk Connections
Building the Trunk-to-Trunk Connection
Verifying the Configuration
Caveats
CESM-T3-to-CESM-T3 Three-Segment Connection
Network Diagram
Configuring the CESM Interfaces
Configuring the Router Interfaces
Building the CESM-to-Trunk Connections
Building the Trunk-to-Trunk Connection
Verifying the Configuration
Caveats
AUSM-8T1-to-AUSM-8T1 Three-Segment Connection
Network Diagram
Configuring the AUSM Interfaces
Configuring the Router Interfaces
Building the AUSM-to-Trunk Connections
Building the Trunk-to-Trunk Connection
Verifying the Configuration
Caveats
FRSM-2CT3-to-AUSM-8T1 PPP-ATM-IMA Three-Segment Connection
Network Diagram
Configuring the FRSM-2CT3 Interface
Configuring the AUSM-8T1 IMA Interface
Configuring the PPP Router Interface
Configuring the ATM-IMA Router Interface
Building the FRSM-2CT3-to-Trunk Connection
Building the AUSM-8T1-to-Trunk Connection
Building the Trunk-to-Trunk Connection
Verifying the Configuration
Caveats
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Related Information
Introduction
All of the configuration examples in this section illustrate designs where data enters and leaves a Service Module, gets switched on the local Processor Switching Module (PXM), and leaves and enters through a feeder trunk on the PXM. The BPX 8600, attached to the MGX 8250, switches the ATM cells to either another feeder-attached MGX 8250, ATM-attached customer premises equipment (CPE), or a feeder-attached MGX 8220.
This document is part six of a six document set:
-
Service Module-to-PXM Feeder Trunk Connections
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
The information in this document is based on these software and hardware versions described the MGX 8250/8230 Configuration Cookbook Introduction.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Conventions
For more information on document conventions, refer to the Cisco Technical Tips Conventions.
FRSM-8T1-to-FRSM-8T1 Three-Segment Connection
In this example, IP connectivity is established between two Cisco 3620 routers. Each router attaches though its T1 WAN interface card (WIC) (serial 0/0) to physical line 1 on a Frame Relay Service Module (FRSM)-8T1 in slot 11 on two different MGX 8250 nodes. Connections are built from the FRSM cards to feeder trunks on the respective PXM cards. A connection is then built from trunk to trunk on the BPX.
Note: To find additional information on the commands used in this document, use the Command Lookup Tool ( registered customers only) .
Network Diagram
This document uses this network setup:
Configuring the FRSM Interfaces
In order to configure the FRSM interfaces, you need to enable the physical line, enable a logical port on the line, and adjust the parameters as necessary.
/**MGX8250A**/ mgx8250a.1.11.FRSM.a > addln 1 mgx8250a.1.11.FRSM.a > dspln 1 LineNum: 1 LineConnectorType: RJ-48 LineType: dsx1ESF LineEnable: Enabled LineCoding: dsx1B8ZS LineLength: 0-131 ft LineXmtClockSource: LocalTiming LineLoopbackCommand: NoLoop LineSendCode: NoCode LineUsedTimeslotsBitMap: 0x0 LineLoopbackCodeDetection: codeDetectDisabled LineBertEnable: Disable
The logical port comprises timeslots 1 through 6. Gang of Four Local Management Interface (LMI) with Enhanced LMI (ELMI) is used.
Syntax : addport "port_num line_num ds0_speed begin_slot num_slot port_type"
port number -- values ranging from 1-192 are accepted for T1 and 1-248 for E1
line number -- value ranging from 1 to 8
DS0 speed -- 1 for 56K, 2 for 64K
beginning slot -- beginning time slot in 1 base
number of slot -- number of DS0 time slots assigned to
port type -- values 1-3, 1=frame relay, 2=FUNI mode-1a, 3=frForward
mgx8250a.1.11.FRSM.a > addport 10 1 2 1 6 1
Syntax : cnfport "portNum lmiSig asyn ELMI T391 T392 N391 N392 N393"
port number -- values ranging from 1-192 are accepted for T1 and 1-248 for E1
LMI signaling -- (N)one (S)trataLMI au-AnnexAUNI
du-AnnexDUNI an-AnnexANNI dn-AnnexDNNI
asyn UPD/UFS -- (UPD = Update Status, UFS = Unsolicited Full Status)
(n or 1) = both dis, (y or 2) = UPD en, 3 = UFS en, 4 = both en
Enhanced LMI -- (N or n) disable (Y or y) enable
T391 timer -- value ranging from 5 to 30 sec.
T392 timer -- value ranging from 5 to 30 sec.
N391 counter -- value ranging from 1 to 255
N392 counter -- value ranging from 1 to 10
N393 counter -- value ranging from 1 to 10, greater than N392
mgx8250a.1.11.FRSM.a > cnfport 10 S n y
mgx8250a.1.11.FRSM.a > dspport 10
SlotNum: 11
PortLineNum: 1
PortNum: 10
PortRowStatus: Mod
PortDs0Speed: 64k
PortDs0ConfigBitMap(1stDS0): 0x3f(1)
PortEqueueServiceRatio: 1
PortFlagsBetweenFrames: 1
PortSpeed: 384kbps
SignallingProtocolType: StrataLMI
AsynchronousMsgs: UPD_UFS disabled
T391LineIntegrityTimer: 10
T392PollingVerificationTimer: 15
N391FullStatusPollingCounter: 6
N392ErrorThreshold: 3
N393MonitoredEventCount: 4
EnhancedLmi: On
PortState: FailedDuetoSignallingFailure
PortSignallingState: LMI Failure
CLLMEnableStatus: Disable
CLLMxmtStatusTimer: 0
portType: frameRelay
PortIngrPercentUtil: 0
PortEgrPercentUtil: 0
PortOversubscribed: False
PortSvcStatus: Disable
PortSvcInUse: Not In-Use
PortSvcShareLcn: Card-based
PortSvcLcnLow: 0
PortSvcLcnHigh: 0
PortSvcDlciLow: 0
PortSvcDlciHigh: 0
PortDs0UsedLine1: 0x0000003f
PortDs0UsedLine2: 0x00000000
PortDs0UsedLine3: 0x00000000
PortDs0UsedLine4: 0x00000000
PortDs0UsedLine5: 0x00000000
PortDs0UsedLine6: 0x00000000
PortDs0UsedLine7: 0x00000000
PortDs0UsedLine8: 0x00000000
PortNumNextAvailable: 11
/**MGX8250B**/
mgx8250b.1.11.FRSM.a > addln 1
mgx8250b.1.11.FRSM.a > dspln 1
LineNum: 1
LineConnectorType: RJ-48
LineType: dsx1ESF
LineEnable: Enabled
LineCoding: dsx1B8ZS
LineLength: 0-131 ft
LineXmtClockSource: LocalTiming
LineLoopbackCommand: NoLoop
LineSendCode: NoCode
LineUsedTimeslotsBitMap: 0x3f
LineLoopbackCodeDetection: codeDetectDisabled
LineBertEnable: Disable
mgx8250a.1.11.FRSM.a > addport 10 1 2 1 6 1
mgx8250a.1.11.FRSM.a > cnfport 10 S n y
mgx8250b.1.11.FRSM.a > dspports
Port Ena/Speed EQServ SignalType T391 T392 N391 N392 N393 Type Alarm ELMI
Ratio
-------- --- ----- ------ ------------ ---- ---- ---- ---- ---- -------- ----- ----
11.1.10 Mod/ 384k 1 StrataLMI 10 15 6 3 4 frameRel No On
Number of ports: 1
PortDs0UsedLine1: 0x0000003f
PortDs0UsedLine2: 0x00000000
PortDs0UsedLine3: 0x00000000
PortDs0UsedLine4: 0x00000000
PortDs0UsedLine5: 0x00000000
PortDs0UsedLine6: 0x00000000
PortDs0UsedLine7: 0x00000000
PortDs0UsedLine8: 0x00000000
PortNumNextAvailable: 11
Configuring the Router Interfaces
For the router interfaces, supply the appropriate physical, data-link, and network layer parameters.
/**WSW-3620A**/ wsw-3620a# conf t <---Enter configuration commands, one per line. End with CNTL/Z. wsw-3620a(config)# int s 0/0 wsw-3620a(config-if)# service-module T1 clock source line wsw-3620a(config-if)# service-module T1 framing esf wsw-3620a(config-if)# service-module T1 linecode b8zs wsw-3620a(config-if)# service-module T1 timeslots 1-6 speed 64 wsw-3620a(config-if)# encap frame ietf wsw-3620a(config-if)# frame-relay qos-autosense wsw-3620a(config)# int s 0/0.300 point wsw-3620a(config-subif)# frame-relay interface-dlci 111 wsw-3620a(config-fr-dlci)# exit wsw-3620a(config-subif)# ip address 10.97.111.1 255.255.255.0 wsw-3620a(config-if)# no shut wsw-3620a(config-if)# ^Z /**WSW-3620B**/ wsw-3620b# conf t <---Enter configuration commands, one per line. End with CNTL/Z. wsw-3620b(config)# int s 0/0 wsw-3620b(config-if)# service-module T1 clock source line wsw-3620b(config-if)# service-module T1 framing esf wsw-3620b(config-if)# service-module T1 linecode b8zs wsw-3620b(config-if)# service-module T1 timeslots 1-6 speed 64 wsw-3620b(config-if)# encap frame ietf wsw-3620b(config-if)# frame-relay qos-autosense wsw-3620b(config-if)# int serial 0/0.300 point wsw-3620b(config-subif)# ip addr 10.97.111.2 255.255.255.0 wsw-3620b(config-subif)# fram interface-dlci 211 cisco wsw-3620b(config-fr-dlci)# exit wsw-3620b(config-if)# no shut wsw-3620b(config-if)# ^Z
Building the FRSM-to-Trunk Connections
In this example, the type of interworking and the virtual path identifier (VPI)/virtual channel identifier (VCI) values to use on the trunk interface are specified. Once the connection is configured, adjust policing on the channel.
/**MGX8250A**/
Syntax : addcon "port dlci cir chan_type [CAC] [Controller_Type] [mastership] [remoteConnId]"
port number -- values ranging from 1-192 are accepted for T1 and 1-248 for E1
DLCI number -- value ranging from 0 to 1023
committed rate -- 0-1536000 bps for T1; 0-2048000 bps for E1
chan type -- values 1-5, 1=NIW 2=SIW-transparent 3=SIW-xlation 4=FUNI 5=frForward
CAC -- Connection Admission Control (optional); 1 = enable, 2 = disable (default)
Controller Type (Signalling) -- 1: PVC (PAR) - Default , 2: SPVC (PNNI)
mastership -- 1 for master, 2 for slave
Remote end Connection ID -- Format :
NodeName.SlotNo.PortNo.Dlci OR
NodeName.SlotNo.PortNo.ControllerId.Dlci for FR end point OR
NodeName.SlotNo.PortNo.VPI.VCI for ATM end point.
Where controller ID can be 1(PAR),2(PNNI),3(TAG)
mgx8250a.1.11.FRSM.a > addcon 10 111 64000 1 2 1 1 mgx8250a.0.1.111.1000
Syntax : cnfchanpol "chan_num cir bc be ibs detag egrat"
channel number -- value ranging from 16 to 1015
committed rate -- 0-1536000 bps for T1, 0-2048000 bps for E1
committed burst -- 0-65535 in bytes
excess burst -- 0-65535 in bytes
initial burst -- 0-65535 in bytes. Less or equal to Bc
DE bit tagging -- 1 for enable, 2 for disable
Egress Service Rate -- 0-1536000 bps for T1, 0-2048000 bps for E1
mgx8250a.1.11.FRSM.a > cnfchanpol 31 64000 8000 2000 2000 1 384000
DLCI Chan EQ I/EQDepth I/EQDEThre I/EECNThre Fst/ DE Type Alarm
------------- ---- -- ----- ----- ----- ----- ----- ----- --- --- ----- -----
11.1.10.111 31 2 65535/65535 32767/32767 6553/6553 Dis/Dis NIW Yes
!--- Since we have not built the BPX connection, our FRSM-PXM connection will have A-Bit issues.
mgx8250a.1.11.FRSM.a > cc 7
(session redirected)
mgx8250a.1.7.PXM.a > dspcons
This End Node Name Other End Status
7.1.111.1000 mgx8250a 11.10.0.111 FAILED ABIT ALARM
11.10.0.111 mgx8250a 7.1.111.1000 FAILED ABIT ALARM
/**MGX8250B**/
mgx8250b.1.11.FRSM.a > addcon 10 211 64000 1 2 1 1 mgx8250b.0.1.211.1000
mgx8250b.1.11.FRSM.a > dspchans
DLCI Chan EQ I/EQDepth I/EQDEThre I/EECNThre Fst/ DE Type Alarm
------------- ---- -- ----- ----- ----- ----- ----- ----- --- --- ----- -----
11.1.10.211 20 2 65535/65535 32767/32767 6553/6553 Dis/Dis NIW Yes
mgx8250b.1.11.FRSM.a > cnfchanpol 20 64000 8000 2000 2000 1 384000
mgx8250b.1.11.FRSM.a > cc 7
(session redirected)
mgx8250b.1.7.PXM.a > dspcons
This End Node Name Other End Status
7.1.211.1000 mgx8250b 11.10.0.211 FAILED ABIT ALARM
11.10.0.211 mgx8250b 7.1.211.1000 FAILED ABIT ALARM
Building the Trunk-to-Trunk Connection
In this example, a connection is built from the feeder trunk interface through which both MGX 8250 nodes connect.
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 July 29 1999 15:48 EDT
From Remote Remote Route
11.1.111.1000 NodeName Channel State Type Avoid COS O
11.1.111.1000 wsw-bpx3 9.1.211.1000 Ok vbr
Last Command: addcon 11.1.111.1000 wsw-bpx3 9.1.211.1000 vbr 302 * 5000 * 151 38
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 July 29 1999 15:48 EDT
Conn: 11.1.111.1000 wsw-bpx3 9.1.211.1000 vbr Status:OK
PCR(0+1) % Util CDVT(0+1) FBTC SCR MBS PLC
302/302 100/100 5000/5000 n 151/151 38/38 3
Path: Route information not applicable for local connections
wsw-bpx3 BXM : OK wsw-bpx3 BXM : OK
Line 11.1 : OK Line 9.1 : OK
OAM Cell RX: Clear NNI : OK
NNI : OK
This Command: dspcon 11.1.111.1000
Verifying the Configuration
Use the ping command to verfy that you have a good connection.
/** Ping from router to router **/
wsw-3620a# ping 10.97.111.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.97.111.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/19/20 ms
/** Display channel stats on the BPX **/
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 July 29 1999 15:54 EDT
Channel Statistics for 11.1.111.100Cleared: July 29 1999 15:53 (\) Snapshot
PCR: 302/302 cps Collection Time: 0 day(s) 00:00:19 Corrupted: NO
Traffic Cells CLP Avg CPS %util Chan Stat Addr: 30F68BD0
From Port : 3295 0 170 56 OAM Cell RX: Clear
To Network : 3295 --- 170 56
From Network: 3271 0 169 55
To Port : 3271 0 169 55
Rx Frames Rcv : 102 NonCmplnt Dscd: 0 Rx Q Depth : 0
Tx Q Depth : 0 Rx CLP0 : 3295 Rx Nw CLP0 : 3271
Igr VSVD ACR : 0 Egr VSVD ACR : 0 Tx Clp0 Port : 3271
Rx Clp0+1 Port: 3295 NCmp CLP0 Dscd: 0 NCmp CLP1 Dscd: 0
Oflw CLP0 Dscd: 0 Oflw CLP1 Dscd: 0
Last Command: dspchstats 11.1.111.1000 1
/** Show Connections on PXMs - A-Bit alarms Disappear **/
mgx8250a.1.7.PXM.a > dspcons
This End Node Name Other End Status
7.1.111.1000 mgx8250a 11.10.0.111 OK
11.10.0.111 mgx8250a 7.1.111.1000 OK
mgx8250b.1.7.PXM.a > dspcons
This End Node Name Other End Status
7.1.211.1000 mgx8250b 11.10.0.211 OK
11.10.0.211 mgx8250b 7.1.211.1000 OK
Caveats
-
Since the FRSM defaults to no signaling and the routers default to Gang of Four (also known as Cisco LMI), the two devices will not communicate until they both agree on a protocol.
-
It is necessary to match the shaping and policing parameters to prevent data loss.
CESM-8E1-to-CESM-8E1 UDT Three-Segment Connection
In this example, an IP over High-Level Data Link Control (HDLC) connection is built between the E1 multiflex trunk module (MFT) ports on two Cisco 3810 routers using a Circuit Emulation Service (CES) Unstructured Data Transport (UDT) connection to transport the E1 circuit. Note that the E1 MFT ports will only take timing from their internal clock. Using unstructured data transfer (UDT), we can take advantage of the adaptive clocking mechanism to reduce the clock slips that will eventually occur. We have also configured the Circuit Emulation Service Module (CESM) ports for framing on VC disconnect to will keep the lines up if the ATM permanent virtual circuit (PVC) goes down. This is not the ideal configuration for a router if you want to use alternate routes.
Note: To find additional information on the commands used in this document, use the Command Lookup Tool ( registered customers only) .
Network Diagram
This document uses this network setup:
Configuring the CESM Interfaces
/** MGX8250A - CESM **/
mgx8250a.1.21.CESM.a > addln 1
Syntax : cnfln "line_num line_code line_len clk_src [E1-signaling]"
line number -- values : 1 - 8
line code -- 2 for B8ZS (T1),
3 for HDB3 (E1),
4 for AMI (T1/E1)
line length -- 10-15 for T1,
8 for E1 with SMB line module,
9 for E1 with RJ48 line module
clock source -- clock source : 1 for loop clock, 2 for local clock
E1 signaling -- CAS: CAS, no CRC; CAS_CRC: CAS, with CRC;
CCS: CCS, no CRC; CCS_CRC: CCS, with CRC;
CLEAR: CLEAR channel
mgx8250a.1.21.CESM.a > cnfln 1 3 9 1 CLEAR
Syntax : addport "port_num line_num begin_slot num_slot port_type"
port number -- values : 1-192 for T1, 1-248 for E1
line number -- values : 1 - 8
beginning slot -- beginning time slot
number of slot -- number of DS0 time slots assigned
port type -- values = 1 - 3, 1: structured 2: Unstructured
3:framingOnVcDisconnect
mgx8250a.1.21.CESM.a > addport 10 1 1 32 3
/** MGX8250B - CESM **/
mgx8250b.1.21.CESM.a > addln 1
mgx8250b.1.21.CESM.a > cnfln 1 3 9 1 CLEAR
mgx8250b.1.21.CESM.a > addport 11 1 1 32 3
Configuring the Router Interfaces
/** WSW-3810I **/ wsw-3810i# conf t <---Enter configuration commands, one per line. End with CNTL/Z. wsw-3810i(config)# network-clock-select 1 system(SCB) wsw-3810i(config)# cont e1 0 wsw-3810i(config-controller)# clock source internal wsw-3810i(config-controller)# framing crc wsw-3810i(config-controller)# line hdb3 wsw-3810i(config-controller)# channel-group 10 time 1-31 speed 64 *Mar 9 23:59:29.423: TDMB channel # 10 Timeslots ( X 48K, . 56K,* 64K, - skipped) 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * wsw-3810i(config-controller)# int s 0:10 wsw-3810i(config-if)# encap hdlc wsw-3810i(config-if)# ip addr 10.97.60.1 255.255.255.0 wsw-3810i(config-if)# ^Z /** WSW-3810K **/ wsw-3810k# conf t Enter configuration commands, one per line. End with CNTL/Z. wsw-3810k(config)# network-clock-select 1 system(SCB) wsw-3810k(config)# cont e1 0 wsw-3810k(config-controller)# clock source internal wsw-3810k(config-controller)# framing crc4 wsw-3810k(config-controller)# line hd wsw-3810k(config-controller)# channel-g 11 time 1-31 speed 64 *Mar 9 22:32:02.825: TDMB channel # 11 Timeslots ( X 48K, . 56K,* 64K, - skipped) 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * wsw-3810k(config-controller)# int s 0:11 wsw-3810k(config-if)# encap hdlc wsw-3810k(config-if)# ip address 10.97.60.2 255.255.2 wsw-3810k(config-if)# B
Building the CESM-to-Trunk Connections
/** MGX8250A - CESM **/
Syntax : addcon "port_num sig_type partial_fill cond_data cond_signaling
[controller_type [mastership [remoteConnId]]]"
port number -- values : 1-192 for T1, 1-248 for E1
sig_type -- values : 1 - basic, 2 - e1Cas, 3 - ds1SfCas,
4 - ds1EsfCas ;
partialfill -- values : 0 for fully filled, 20 - 47 for E1 Struct,
25 - 47 for T1 Struct, 33 - 47 for T1/E1 Unstruct ;
conddata -- values : always 255 for UDT, 0 - 255 for SDT;
condsig -- values : 0 - 15;
controller type -- 1: PVC/PAR (default), 2: SPVC/PNNI
mastership -- 1: master, 2: slave (default)
remote end connection ID -- Format : NodeName.SlotNo.PortNo.Vpi.Vci
mgx8250a.1.21.CESM.a > addcon 10 1 0 255 15 1 1 mgx8250a.0.1.60.100
Syntax : cnfcon "port_num CDVT CLIP bufsize clockmode IdleSuppEnable ForceIdleSuppression"
Port -- A unique Port identifying a connection
CDVT -- Cell delay variation : 125 - 24000 micro seconds for T1
125 - 26000 micro seconds for E1
(in increments of 125)
CLIP -- CellLossIntegrationPeriod : 1000-65535 milli seconds
bufsize -- egress bufsize : 0 to autocompute,
Min value depends on CDVT configured.
Min BufSize = greater { ( CDVT in frames * 2 ) * N,
( CDVT + frames in 2 cells ) * N }
Max for T1 UDT and E1 UDT : 16224 bytes
Max for T1 SDT : 384 * N bytes
Max for E1 SDT : 417 * N bytes
where N is the number of timeslots assigned
in Nx64 connection. and N = 32 for T1/E1 UDT
cbrclkmode -- values : 1 - 3 ; 1:synchronous , 2:srts, 3:adaptive
isenable -- values : 1 - 2 ; 1:disabled , 2:enabled,
exttrigis -- values : 1 - 2 ; 1:disable idle suppression,
2:enable idle suppression
mgx8250a.1.21.CESM.a > cnfcon 10 1000 1000 0 3 1 1
/** MGX8250B - CESM **/
mgx8250b.1.21.CESM.a > addcon 11 1 0 255 15 1 1 mgx8250b.0.1.61.101
mgx8250b.1.21.CESM.a > cnfcon 11 1000 1000 0 3 1 1
Building the Trunk-to-Trunk Connection
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 Aug. 5 1999 10:06 EDT From Remote Remote Route 11.1.60.100 NodeName Channel State Type Avoid COS O 11.1.60.100 wsw-bpx3 9.1.61.101 Ok cbr Last Command: addcon 11.1.60.100 wsw-bpx3 9.1.61.101 CBR 5447 * 1000 *
Verifying the Configuration
!--- As soon as we add the port on the CESM, the E1 lines come up and the
!--- interface shows "looped."
*Mar 10 00:18:55.768: %CONTROLLER-5-UPDOWN: Controller E1 0, changed state to up
*Mar 10 00:18:57.776: %LINK-3-UPDOWN: Interface Serial0:10, changed state to up
*Mar 10 00:18:58.789: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0:10, changed state to up
wsw-3810i# show int s 0:10
Serial0:10 is up, line protocol is up (looped)
Hardware is PQUICC Serial
Internet address is 10.97.60.1/24
MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input 00:00:04, output 00:00:04, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0 (size/max/drops); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
5 packets input, 957 bytes, 0 no buffer
Received 5 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
5 packets output, 957 bytes, 0 underruns
0 output errors, 0 collisions, 7 interface resets
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
!--- Channel stts on on the BPX for the connection.
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 Aug. 5 1999 11:00 EDT
Channel Statistics for 9.1.61.101 Cleared: Aug. 5 1999 10:59 (/) Snapshot
PCR: 5447/5447 cps Collection Time: 0 day(s) 00:00:22 Corrupted: NO
Traffic Cells CLP Avg CPS %util Chan Stat Addr: 30F69044
From Port : 121504 0 5446 99 OAM Cell RX: Clear
To Network : 121504 --- 5446 99
From Network: 121505 0 5446 99
To Port : 121505 0 5446 99
Rx Frames Rcv : 0 NonCmplnt Dscd: 0 Rx Q Depth : 0
Tx Q Depth : 0 Rx CLP0 : 121504 Rx Nw CLP0 : 121505
Igr VSVD ACR : 0 Egr VSVD ACR : 0 Tx Clp0 Port : 121505
Rx Clp0+1 Port: 121504 NCmp CLP0 Dscd: 0 NCmp CLP1 Dscd: 0
Oflw CLP0 Dscd: 0 Oflw CLP1 Dscd: 0
Last Command: dspchstats 9.1.61.101 1
/** Ping test for connectivity **/
wsw-3810i# ping 10.97.60.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.97.60.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/11/24 ms
Caveats
-
Be sure take note of the timing. The E1 ports on the Cisco 3810 units will take internal timing only. The unstructured circuit emulation connection type allows you to choose between synchronous, Synchronous Residual Time Stamp (SRTS), and adaptive timing mechanisms. These examples uses adaptive timing to adjust to timing differences on the two edge devices.
CESM-T3-to-CESM-T3 Three-Segment Connection
In this recipe, the CESM-T3 cards are used in slot 14 of both MGX 8250 nodes to connect the two unchannelized serial DS3 port adapters on a pair of routers. IP connectivity is established between the routers using the default HDLC layer 2 encapsulation.
Note: To find additional information on the commands used in this document, use the Command Lookup Tool ( registered customers only) .
Network Diagram
This document uses this network setup:
Configuring the CESM Interfaces
/** MGX8250B **/
mgx8250b.1.14.CESMT3.a > addln 1
mgx8250b.1.14.CESMT3.a > dspln 1
LineNum: 1
LineEnable: Enabled
LineType: dsx3Unframed
LineCoding: dsx3B3ZS
LineLength: LessThan225ft
LineLoopbackCommand: NoLoop
LineXmitClockSource: backplane clock from BNM
LineEqualizer: internal equalizer
Syntax : addport "port_num line_num"
port number -- value 1(T3/E3)
line number -- values : 1
mgx8250b.1.14.CESMT3.a > addport 1 1
Syntax : cnfln "line_num line_code line_len clk_src "
DS3 line number -- value 1 for CESM-T3E3
line code -- 1 for B3ZS (T3),
2 for HDB3 (E3)
line length -- 1 for LessThan225ft,
2 for GreaterThan225ft
Dsx3 Xmt Clock Src -- 1 = backplane clock from BNM, 2 = recovery clock from T3
mgx8250b.1.14.CESMT3.a > cnfln 1 1 1 1
/** MGX8250A **/
mgx8250a.1.14.CESMT3.a > addln 1
mgx8250a.1.14.CESMT3.a > cnfln 1 1 1 1
mgx8250a.1.14.CESMT3.a > addport 1 1
Configuring the Router Interfaces
/**WSS-7576AH **/ wss-7576ah# conf t <---Enter configuration commands, one per line. End with CNTL/Z. wss-7576ah(config)# int s 8/1/0 wss-7576ah(config-if)# dsu mode 0 wss-7576ah(config-if)# dsu bandwidth 44210 wss-7576ah(config-if)# fram m13 wss-7576ah(config-if)# no shut wss-7576ah(config-if)# ip addr 10.97.250.2 255.255.255.0 wss-7576ah(config-if)# ^Z /** WSS-7576AL **/ wsw-7576al# conf t <---Enter configuration commands, one per line. End with CNTL/Z. wsw-7576al(config)# int s 5/0/0 wsw-7576al(config-if)# dsu mode 0 wsw-7576al(config-if)# dsu bandwidth 44210 wsw-7576al(config-if)# fram m13 wsw-7576al(config-if)# ip addr 10.97.250.1 255.255.255.0 wsw-7576al(config-if)# no shut wsw-7576al(config-if)# ^Z
Building the CESM-to-Trunk Connections
/** MGX8250B **/
Syntax : addcon "port_num [mastership [remoteConnId]]"
port number -- value 1(T3/E3)
mastership -- 1 for master, 2 for slave
remote end connection ID -- Format : NodeName.SlotNo.PortNo.Vpi.Vci
mgx8250b.1.14.CESMT3.a > addcon 1 1 mgx8250b.0.1.25.251
Syntax : cnfcon "port_num CDVT CellLossIntegPeriod bufsize "
Port -- A unique Port identifying a connection
CDV -- Cell delay variation : 125 - 1447 micro seconds for T3
125 - 1884 micro seconds for E3
CellLossIntegPeriod -- Cell loss integration period:
Range 1000-65535 milli seconds
bufsize -- egress bufsize : 0 to autocompute, upto 16224 for T3/E3
mgx8250b.1.14.CESMT3.a > cnfcon 1 1000 1000 0
mgx8250b.1.14.CESMT3.a > dspcon 1
ChanNum: 32
ChanRowStatus: Mod
ChanLineNum: 1
ChanMapVpi: 14
ChanMapVci: 32
ChanCBRService: unstructured
ChanMaxBufSize: 11200 bytes
ChanCDV: 1000 micro seconds
C L I P: 1000 milliseconds
ChanLocalRemoteLpbkState: Disabled
ChanTestType: TestOff
ChanTestState: NotInProgress
ChanRTDresult: 65535 ms
ChanPortNum 1
ChanConnType PVC
CondData 255
ChanLocalVpi: 0
ChanLocalVci: 0
ChanLocalNSAP: 6d6778383835306200000000000000000e000100
ChanRemoteVpi: 25
ChanRemoteVci: 251
ChanRemoteNSAP: 6d67783838353062000000000000000000000100
ChanMastership: Master
ChanVpcFlag: Vcc
ChanConnServiceType: CBR
ChanRoutingPriority: 1
ChanMaxCost: 255
ChanRestrictTrunkType: No Restriction
ChanConnPCR: 118980
ChanConnMCR: 118980
ChanConnPercentUtil: 100
/** MGX8250A **/
mgx8250a.1.14.CESMT3.a > addcon 1 1 mgx8250a.0.1.25.250
mgx8250a.1.14.CESMT3.a > cnfcon 1 1000 1000 0
Building the Trunk-to-Trunk Connection
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 Aug. 6 1999 17:24 EDT
From Remote Remote Route
11.1.25.250 NodeName Channel State Type Avoid COS O
11.1.25.250 wsw-bpx3 9.1.25.251 Ok cbr
Last Command: addcon 11.1.25.250 wsw-bpx3 9.1.25.251 cbr 118980 * 1000 *
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 Aug. 6 1999 17:25 EDT
Conn: 11.1.25.250 wsw-bpx3 9.1.25.251 cbr Status:OK
PCR(0+1) % Util CDVT(0+1) Policing
118980/118980 100/100 1000/1000 4/4
Path: Route information not applicable for local connections
wsw-bpx3 BXM : OK wsw-bpx3 BXM : OK
Line 11.1 : OK Line 9.1 : OK
OAM Cell RX: Clear NNI : OK
NNI : OK
This Command: dspcon 11.1.25.250
Verifying the Configuration
Use the ping command to verfy that you have a good connection.
/** The baseline PING test **/ wss-7576ah# ping 10.97.250.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.97.250.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/8 ms wss-7576ah# !--- Look at channel statistics for the BPX connection.
This output is a little troubling. Both Serial DS3 port adapters (PAs) are taking clock timing from the line (CESM-T3), and the CESM lines are supposedly timed from the backplane. Also, each node should be clocking from the connected feeder trunk. Since both the node and feeder truck emanate from the same BPX, the cell rates should be the same on both ends.
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 Aug. 6 1999 17:27 EDT
Channel Statistics for 11.1.25.250 Cleared: Aug. 6 1999 17:25 (-) Snapshot
PCR: 118980/118980 cps Collection Time: 0 day(s) 00:01:40 Corrupted: NO
Traffic Cells CLP Avg CPS %util Chan Stat Addr: 30F691C0
From Port : 11907373 0 118978 99 OAM Cell RX: Clear
To Network : 11907374 --- 118978 99
From Network: 11907426 0 118979 99
To Port : 11907426 0 118979 99
Rx Frames Rcv : 0 NonCmplnt Dscd: 0 Rx Q Depth : 1
Tx Q Depth : 0 Rx CLP0 : 11907373 Rx Nw CLP0 : 11907426
Igr VSVD ACR : 0 Egr VSVD ACR : 0 Tx Clp0 Port : 11907426
Rx Clp0+1 Port: 11907373 NCmp CLP0 Dscd: 0 NCmp CLP1 Dscd: 0
Oflw CLP0 Dscd: 0 Oflw CLP1 Dscd: 0
Last Command: dspchstats 11.1.25.250 1
Caveats
-
CESM-T3 is running beta code in this example, so it may not work correctly.
-
Firmware supports only synchronous timing, so be sure to take timing from the same source.
-
Only one T3 line is supported on the CESM-T3.
AUSM-8T1-to-AUSM-8T1 Three-Segment Connection
In this example, IP connectivity is established between the MFT (controller T1 0) interfaces on two MC3810 routers. The MFT ports are provisioned for ATM encapsulation. The cells are received on the MGX 8250 switches through AUSM-8T1/B service modules. Connections on the ATM user service module (AUSM) cards switch the cells through the PXM feeder trunks to the BPX where they are switched between feeder trunks.
Note: To find additional information on the commands used in this document, use the Command Lookup Tool ( registered customers only) .
Network Diagram
This document uses this network setup:
Configuring the AUSM Interfaces
In order to configure the AUSM interface, you need to enable the physical line, enable a logical port on the line, and adjust parameters as necessary. Also, enable payload scrambling on the line.
/** MGX8250B **/
mgx8250b.1.27.AUSMB8.a > addln 1
mgx8250b.1.27.AUSMB8.a > dspln 1
LineNum: 1
LineConnectorType: RJ-48
LineType: dsx1ESF
LineEnable: Enabled
LineCoding: dsx1B8ZS
LineLength: 0-131 ft
LineXmtClockSource: LocalTiming
LineLoopbackCommand: NoLoop
LineSendCode: NoCode
LineUsedTimeslotsBitMap: 0xffffffff
LineLoopbackCodeDetection: codeDetectDisabled
LineBERTEnable: Disable
Syntax : addport "port_num port_type line_num"
port number -- values ranging from 1-8
Port Type -- 1 - UNI, 2 - NNI
line number -- value ranging from 1 to 8
mgx8250b.1.27.AUSMB8.a > addport 1 1 1
mgx8250b.1.27.AUSMB8.a > dspport 1
LogicalPortNumber: 1
Port Enable: UP
Port State: Active
PortType: UNI
PhysicalPortNumber: 1
CellFraming: ATM
CellScramble: No Scramble
Plpp Loopback: No Loopback
Single-bit error correction: Disabled
mgx8250b.1.27.AUSMB8.a > dspplpp 1
PhysicalPortNumber: 1
CellFraming: ATM
CellScramble: No Scramble
Plpp Loopback: No Loopback
Single-bit error correction: Disabled
Syntax : cnfplpp "phy_port_num loopback scramble singlebit_errcorr_ena"
physical port number -- value should be between 1 to 8
plpp loopback -- : 1- no loopback, 2- remote loopback, 3- local loopback
cell scramble -- cell scramble: 1: no scramble, 2: scramble
single bit errcorr -- 1: disable, 2: enable
mgx8250b.1.27.AUSMB8.a > cnfplpp 1 1 2 1
/** MGX8250A **/
mgx8250a.1.27.AUSMB8.a > addln 1
mgx8250a.1.27.AUSMB8.a > addport 1 1 1
mgx8250a.1.27.AUSMB8.a > cnfplpp 1 1 2 1
Configuring the Router Interfaces
For the router interface, supply the appropriate physical, data-link, and network layer parameters. Since both Cisco 3810s are equipped with MFT and digital voice module (DVM) T1 interfaces, be sure to set the proper clocking. Clock the device off of the interface that connects to the AUSM (controller T1 0). Configure the ATM interface for payload scrambling.
/** WSW-3810N **/ wsw-3810n# conf t <---Enter configuration commands, one per line. End with CNTL/Z. wsw-3810n(config)# network-clock base-rate 64k wsw-3810n(config)# network-clock-select 1 t1 0 wsw-3810n(config)# controller t1 0 wsw-3810n(config-controller)# framing esf wsw-3810n(config-controller)# linecode b8zs wsw-3810n(config-controller)# clock source line wsw-3810n(config-controller)# mode atm *Mar 3 21:41:02.644: TDMB channel # 99 Timeslots ( X 48K, . 56K,* 64K, - skipped) 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 wsw-3810n(config-controller)# int atm 0 wsw-3810n(config-if)# atm enable-payload-scrambling wsw-3810n(config-if)# int atm 0.410 point wsw-3810n(config-subif)# pvc WSS-3810M 40/400 wsw-3810n(config-if-atm-vc)# ubr 64 wsw-3810n(config-if-atm-vc)# ip address 10.97.171.2 255.255.255.0 *Mar 3 21:44:41.893: Service Type: ATM peak rate provisioned UBR wsw-3810n(config-if)# exit wsw-3810n(config)# interface Loop 0 wsw-3810n(config-if)# ip address 10.97.175.1 255.255.255.0 wsw-3810n(config-if)# exit wsw-3810n(config)# router ospf 777 wsw-3810n(config-router)# network 10.97.168.0 0.0.7.255 area 0 !--- In order to prevent clock slips, we need to make sure either the MFT or the DVM clocks the box, !--- not both. wsw-3810n(config-router)# cont t1 1 wsw-3810n(config-controller)# clock source internal wsw-3810n(config-controller)# ^Z /** WSW-3810M **/ wsw-3810m# conf t <---Enter configuration commands, one per line. End with CNTL/Z. wsw-3810m(config)# network-clock base-rate 64k wsw-3810m(config)# network-clock-select 1 t1 0 wsw-3810m(config)# controller t1 0 wsw-3810m(config-controller)# framing esf wsw-3810m(config-controller)# linecode b8zs wsw-3810m(config-controller)# clock source line wsw-3810m(config-controller)# mode atm *Mar 8 04:08:02.644: TDMB channel # 99 Timeslots ( X 48K, . 56K,* 64K, - skipped) 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 wsw-3810m(config-controller)# int atm 0 wsw-3810m(config-if)# atm enable-payload-scrambling wsw-3810m(config-if)# int atm 0.410 point wsw-3810m(config-subif)# pvc WSS-3810N 40/410 wsw-3810m(config-if-atm-vc)# ubr 64 wsw-3810m(config-if-atm-vc)# ip address 10.97.171.1 255.255.255.0 *Mar 8 04:10:41.893: Service Type: ATM peak rate provisioned UBR wsw-3810m(config-if)# exit wsw-3810m(config)# interface Loop 0 wsw-3810m(config-if)# ip address 10.97.169.1 255.255.255.0 wsw-3810m(config-if)# exit wsw-3810m(config)# router ospf 777 wsw-3810m(config-router)# network 10.97.168.0 0.0.7.255 area 0 !--- In order to prevent clock slips, we need to make sure either the MFT or the DVM clocks !--- the box, not both. wsw-3810m(config-router)# cont t1 1 wsw-3810m(config-controller)#clock source internal wsw-3810m(config-controller)#^Z
Building the AUSM-to-Trunk Connections
/** MGX8250B **/
Syntax : addcon "port_num vpi vci conn_type service_type [Controller_Type] [mastership] [remoteConnId]"
port number -- values ranging from 1-8
Channel VPI -- Virtual Path Identifier: 0 - 255
Channel VCI -- Virtual Channel Identifier: 0 - 65535 for VCC, * for VPC
Connection Type -- Connection Type : 0 - VCC , non zero - Local
VP Id of the VPC (1 to 1000)
Service Type -- Service Type: 1 - CBR, 2 - VBR, 3 - ABR, 4 - UBR
Controller Type (Signalling) -- 1: PVC (PAR) - Default , 2: SPVC (PNNI)
Mastership -- 1 for master, 2 for slave Default:Slave
Remote end Connection ID -- Format : NodeName.SlotNo.PortNo.ExternalConnId
mgx8250b.1.27.AUSMB8.a > addcon 1 40 400 0 4 1 1 mgx8250b.0.1.42.412
Syntax : cnfupcubr "Port.VPI.VCI enable pcr[0+1] cdvt[0+1] IngPcUtil clp_tag "
Port.VPI.VCI -- A unique Port.VPI.VCI identifying a connection
Enable/Disable -- UPC : 1 - Disable, 2 - Enable
PeakCellRate -- PCR [0+1]: 10-PortRate(T1-3622,E1-4528,clearE1-4830),
For IMA,T1-3591,E1-4490,clrE1-4789, multiply rate by #links
CDVT[0+1] -- Cell Delay Variation [0+1]: 1 - 250000 micro_secs
IngPcUtil -- Ingress percentage util: 1 to 127. 0 for default
Clp Tagging -- CLP TAG Enable : 1 - Disable, 2 - Enable
mgx8250b.1.27.AUSMB8.a > cnfupcubr 1.40.400 2 151 10000 0 2
/** MGX8250A **/
mgx8250a.1.27.AUSMB8.a > addcon 1 40 410 0 4 1 1 mgx8250a.0.1.41.411
mgx8250a.1.27.AUSMB8.a > cnfupcubr 1.40.410 2 151 10000 0 2
Building the Trunk-to-Trunk Connection
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 Aug. 6 1999 17:50 EDT
From Remote Remote Route
11.1.41.411 NodeName Channel State Type Avoid COS O
11.1.41.411 wsw-bpx3 9.1.42.412 Ok ubr
Last Command: addcon 11.1.41.411 wsw-bpx3 9.1.42.412 ubr 151 * 1000 * *
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 Aug. 6 1999 17:49 EDT
Conn: 11.1.41.411 wsw-bpx3 9.1.42.412 ubr Status:OK
PCR(0+1) % Util CDVT(0+1) FBTC CLP Set
151/151 1/1 1000/1000 y 1
Path: Route information not applicable for local connections
wsw-bpx3 BXM : OK wsw-bpx3 BXM : OK
Line 11.1 : OK Line 9.1 : OK
OAM Cell RX: Clear NNI : OK
NNI : OK
This Command: dspcon 11.1.41.411
Verifying the Configuration
On the wsw-3810n, look at the Open Shortest Path First (OSPF) neighbors and then ping the other Cisco 3810. This is a follow-on to the RPM-AUSM DAX connection, which is why the extra neighbor appears.
wsw-3810n#show ip ospf n
Neighbor ID Pri State Dead Time Address Interface
10.97.174.1 1 FULL/ - 00:00:30 10.97.172.2 ATM0.400
10.97.170.1 1 FULL/ - 00:00:31 10.97.171.1 ATM0.410
wsw-3810n#sh ip ospf n d
Neighbor 10.97.174.1, interface address 10.97.172.2
In the area 0 via interface ATM0.400
Neighbor priority is 1, State is FULL, 6 state changes
DR is 0.0.0.0 BDR is 0.0.0.0
Options 2
Dead timer due in 00:00:38
Index 2/2, retransmission queue length 0, number of retransmission 0
First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
Last retransmission scan length is 0, maximum is 0
Last retransmission scan time is 0 msec, maximum is 0 msec
Neighbor 10.97.170.1, interface address 10.97.171.1
In the area 0 via interface ATM0.410
Neighbor priority is 1, State is FULL, 6 state changes
DR is 0.0.0.0 BDR is 0.0.0.0
Options 2
Dead timer due in 00:00:37
Index 1/1, retransmission queue length 0, number of retransmission 1
First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
Last retransmission scan length is 1, maximum is 1
Last retransmission scan time is 0 msec, maximum is 0 msec
wsw-3810n# ping 10.97.171.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.97.171.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/43/44 ms
On the wsw-3810m, look at the OSPF neighbors and turn on debug ip packet detail to see the pings from the other Cisco 3810. This is a follow-on to the RPM-AUSM DAX connection, which is why the extra neighbor appears.
wsw-3810m# show ip ospf n
Neighbor ID Pri State Dead Time Address Interface
10.97.168.1 1 FULL/ - 00:00:31 10.97.170.2 ATM0.400
10.97.175.1 1 FULL/ - 00:00:30 10.97.171.2 ATM0.410
wsw-3810m# show ip ospf n det
Neighbor 10.97.168.1, interface address 10.97.170.2
In the area 0 via interface ATM0.400
Neighbor priority is 1, State is FULL, 6 state changes
DR is 0.0.0.0 BDR is 0.0.0.0
Options 2
Dead timer due in 00:00:30
Index 2/2, retransmission queue length 0, number of retransmission 0
First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
Last retransmission scan length is 0, maximum is 0
Last retransmission scan time is 0 msec, maximum is 0 msec
Neighbor 10.97.175.1, interface address 10.97.171.2
In the area 0 via interface ATM0.410
Neighbor priority is 1, State is FULL, 6 state changes
DR is 0.0.0.0 BDR is 0.0.0.0
Options 2
Dead timer due in 00:00:39
Index 1/1, retransmission queue length 0, number of retransmission 0
First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0)
Last retransmission scan length is 0, maximum is 0
Last retransmission scan time is 0 msec, maximum is 0 msec
wsw-3810m#
wsw-3810m# deb ip pack det
IP packet debugging is on (detailed)
wsw-3810m#
*Mar 8 04:12:24.521: IP: s=10.97.171.2 (ATM0.410), d=10.97.171.1 (ATM0.410), len 100, rcvd 3
*Mar 8 04:12:24.525: ICMP type=8, code=0
*Mar 8 04:12:24.525:
*Mar 8 04:12:24.525: IP: s=10.97.171.1 (local), d=10.97.171.2 (ATM0.410), len 100, sending
*Mar 8 04:12:24.529: ICMP type=0, code=0
*Mar 8 04:12:24.529:
*Mar 8 04:12:24.574: IP: s=10.97.171.2 (ATM0.410), d=10.97.171.1 (ATM0.410), len 100, rcvd 3
*Mar 8 04:12:24.574: ICMP type=8, code=0
Caveats
-
Remember to set usage parameter control (UPC) on all AUSM connections or your data will most likely not be policed to your needs.
-
On a Cisco 3810 equipped with both a DVM and an MFT, configure the box to take timing from most of the interfaces. If you configure the MFT to take timing from the line and you configure the box to take timing from the MFT, then you need to configure the DVM so that the box cannot take timing from the DVM line (for example, configure DVM to time internal).
-
There is no need to set IP MTU for OSPF compatibility because both interfaces have the same MTU of 1500.
FRSM-2CT3-to-AUSM-8T1 PPP-ATM-IMA Three-Segment Connection
In this configuration example, a standard PPP-to-ATM connection is built using a FRSM card to convert the PPP frames to ATM cells. The AUSM card then passes the cells to an ATM router capable of handling the conversion. However, the ATM connection between the AUSM and the router is actually an Inverse Multiplexing for ATM (IMA) bundle that terminates on an IMA port adapter on a Cisco 7200.
Note: To find additional information on the commands used in this document, use the Command Lookup Tool ( registered customers only) .
Network Diagram
This document uses this network setup:
Configuring the FRSM-2CT3 Interface
The channelized T3 FRSM requires us to first add the DS3 line, configure the associated parameters, and then go down to the DS1 level. Since this is a PPP to ATM connection, it is only necessary to set the port in frame forwarding mode, because the data is going between the flags and being shipped out.
mgx8250a.1.5.VHS2CT3.a > addln 1
Syntax : cnfds3ln "line_num line_type line_len clk_src "
DS3 line number -- value range from 1 to 2
Line Type -- 1 = C-bit Parity, 2 = g832_g804 ,3 = M13 , 4 = g751
line length -- 1 for LessThan225ft,
2 for GreaterThan225ft
Dsx3 Xmt Clock Src -- 1 : backplane-clk 2 : recovery-clk 3 : Local-clk
mgx8250a.1.5.VHS2CT3.a > cnfds3ln 1 3 1 1
Error occurred during the SNMP SET operation !!
Probable Reason : "Wrong XmtClkSrc value"
SNMP Error Code : 6
Set failed due to illegal parameter(s)
mgx8250a.1.5.VHS2CT3.a > cnfds3ln 1 3 1 3
Syntax : cnfln "line_num line_type clk_src "
DS1 line number -- value range from 1 to 56
DS1 line type -- 1 = dsx1ESF 2 = dsx1D4
clock source -- clock source : 1 for loop clock, 2 for local clock
mgx8250a.1.5.VHS2CT3.a > cnfln 1 1 2
Syntax : addport "port_num line_num ds0_speed begin_slot num_slot port_ type"
port number -- values ranging from 1-2( 2T3/2E3/HS2), 1-256 (2CT3)
port line number -- value ranging from 1 to 56
DS0 speed -- 1 for 56K, 2 for 64K
beginning slot -- beginning time slot in 1 base
number of slot -- number of DS0 time slots assigned to
port type -- values 1-3, 1=frame relay, 2=FUNI mode-1a, 3=frForward
mgx8250a.1.5.VHS2CT3.a > addport 11 1 2 1 18 3
Configuring the AUSM-8T1 IMA Interface
mgx8250b.1.28.AUSMB8.a > addln 5
mgx8250b.1.28.AUSMB8.a > addln 6
mgx8250b.1.28.AUSMB8.a > addln 7
mgx8250b.1.28.AUSMB8.a > addln 8
Syntax : cnfln "line_num line_code line_len clk_src [E1-signaling]"
line number -- values ranging from 1-8 are accepted, for AUSM-8T1/8E1, IMATM-T3T1/E3E1
line code -- 2 for B8ZS (T1),
3 for HDB3 (E1)
line length -- 10-15 for T1, 8 for E1 with SMB module,
9 for E1 with RJ48 line module
clock source -- clock source : 1 for loop clock, 2 for local clock
E1 signaling -- CCS: CCS, no CRC; CCS_CRC: CCS, with CRC;
CLEAR: Clear E1
mgx8250b.1.28.AUSMB8.a > cnfln 5 2 10 2
mgx8250b.1.28.AUSMB8.a > cnfln 6 2 10 2
mgx8250b.1.28.AUSMB8.a > cnfln 7 2 10 2
mgx8250b.1.28.AUSMB8.a > cnfln 8 2 10 2
Syntax : addimagrp (or addaimgrp) "group_num port_type list_of_lines minNumLinks"
IMA group number -- value ranging from 1 to 8
Port Type -- 1 - UNI, 2 - NNI
List of links -- list of links separated by dots
minimum no of links -- minimum number of links for the group formation :value ranging from 1 to 8
mgx8250b.1.28.AUSMB8.a > addimagrp 1 1 5.6.7.8 2
mgx8250b.1.28.AUSMB8.a > dspaimgrp 1
IMA Group number : 1
Port type : UNI
Lines configured : 5.6.7.8
Enable : Enabled
IMA Port state : Active
IMA Group Ne state : operational
PortSpeed (cells/sec) : 14364
GroupTxAvailCellRate (cells/sec) : 14364
ImaGroupTxFrameLength(cells) : 128
LcpDelayTolerance (IMA frames) : 1
ReadPtrWrPtrDiff (cells) : 4
Minimum number of links : 2
MaxTolerableDiffDelay (msec) : 275
Lines Present : 5.6.7.8
ImaGroupRxImaId : 0x0
ImaGroupTxImaId : 0x0
Observed Diff delay (msec) : 0
Clock Mode : CTC
GroupAlpha : 2
GroupBeta : 2
GroupGamma : 1
GroupConfiguration : 1
IMAGrp Failure status : No Failure
Timing reference link : 5
Configuring the PPP Router Interface
wsw-7576al# conf t wsw-7576al(config)# controller t3 2/0/0 wsw-7576al(config-controller)# framing m23 wsw-7576al(config-controller)# clock source line wsw-7576al(config-controller)# t1 1 channel-group 0 timeslots 1-18 speed 64 wsw-7576al(config-controller)# t1 1 framing esf wsw-7576al(config-controller)# t1 1 clock source line wsw-7576al(config-controller)# ipx routing wsw-7576al(config)# ipx internal-network AA0000 wsw-7576al(config)# int s 2/0/0/1:0 wsw-7576al(config-if)# encap ppp wsw-7576al(config-if)# ipx ipxwan wsw-7576al(config-if)# ppp auth chap wsw-7576al(config-if)# username wsw-7206c pass cisco wsw-7576al(config)# ^Z
Configuring the ATM-IMA Router Interface
wsw-7206c# conf t Enter configuration commands, one per line. End with CNTL/Z. wsw-7206c(config)# ipx routing wsw-7206c(config)# ipx internal BB0000 wsw-7206c(config)# int atm 4/0 wsw-7206c(config-if)# fram esf wsw-7206c(config-if)# line b8 wsw-7206c(config-if)# clock source line wsw-7206c(config-if)# lbo short 133 wsw-7206c(config-if)# ima 0 wsw-7206c(config-if)# int atm 4/1 wsw-7206c(config-if)# fram esf wsw-7206c(config-if)# line b8 wsw-7206c(config-if)# clock source line wsw-7206c(config-if)# lbo short 133 wsw-7206c(config-if)# ima 0 wsw-7206c(config-if)# int atm 4/2 wsw-7206c(config-if)# fram esf wsw-7206c(config-if)# line b8 wsw-7206c(config-if)# clock source line wsw-7206c(config-if)# lbo short 133 wsw-7206c(config-if)# ima 0 wsw-7206c(config-if)# int atm 4/3 wsw-7206c(config-if)# fram esf wsw-7206c(config-if)# line b8 wsw-7206c(config-if)# clock source line wsw-7206c(config-if)# lbo short 133 wsw-7206c(config-if)# ima 0 wsw-7206c(config-if)# int atm 4/ima0 wsw-7206c(config-if)# ima active-links-minimum 2 wsw-7206c(config-if)# ima clock comm 0 wsw-7206c(config-if)# ima diff 125 wsw-7206c(config-if)# int atm 4/0 wsw-7206c(config-if)# no shut wsw-7206c(config-if)# int atm 4/1 wsw-7206c(config-if)# no shut wsw-7206c(config-if)# int atm 4/2 wsw-7206c(config-if)# no shut wsw-7206c(config-if)# int atm 4/3 wsw-7206c(config-if)# no shut wsw-7206c(config-if)# int atm 4/ima0.1010 point wsw-7206c(config-subif)# pvc PPP-IMA 1/1010 wsw-7206c(config-if-atm-vc)# encap aal5ciscoppp virtual-Template 1 wsw-7206c(config-if-atm-vc)# ubr 256 wsw-7206c(config-if-atm-vc)# int virtual-template 1 wsw-7206c(config-if)# ipx ipxwan wsw-7206c(config-if)# ppp auth chap wsw-7206c(config-if)# username wsw-7576al pass cisco wsw-7206c(config)# ^Z
Building the FRSM-2CT3-to-Trunk Connection
mgx8250a.1.5.VHS2CT3.a > dspports
Port Ena/Speed SignalType T391 T392 N391 N392 N393 Type Alarm ELMI
---- --------- ------------ ---- ---- ---- ---- ---- ---- ----- ----
5.1.11 Add/1152k NoSignalling 10 15 6 3 4 frForwar No Off
Syntax : addcon "port dlci cir chan_type serv_type [CAC] [Controller_Type] [mastership] [remoteConnId]
port number -- values ranging from 1-2( 2T3/2E3/HS2), 1-256 (2CT3)
DLCI number -- value ranging from 0-1023(2CT3/2T3/2E3/HS2)
committed rate -- 0-1536000 bps for 2CT3; 0-44210000 bps for 2T3;
0-34010000 bps for 2E3 , 0-51840000 bps for HS2
chan type -- values 1-5, 1=NIW 2=SIW-transparent 3=SIW-xlation
4=FUNI 5=frForward
Egress service type -- 1 = highpriorityQ 2 = rtVBRQ
3 = nrtVBRQ 4 = aBRQ
5 = uBRQ
CAC -- Connection Admission Control (optional); 1 = enable, 2 = disable (default)
Controller Type (Signalling) -- 1: PVC (PAR) - Default , 2: SPVC (PNNI)
mastership -- 1 for master, 2 for slave
Remote end Connection ID -- Format :
NodeName.SlotNo.PortNo.Dlci OR
NodeName.SlotNo.PortNo.ControllerId.Dlci for FR end point OR
NodeName.SlotNo.PortNo.VPI.VCI for ATM end point.
Where controller ID can be 1(PAR),2(PNNI),3(TAG)
mgx8250a.1.5.VHS2CT3.a > addcon 11 1000 256000 5 5 2 1 1 mgx8250a.0.1.11.111
Building the AUSM-8T1-to-Trunk Connection
Syntax : addcon "port_num vpi vci conn_type service_type [Controller_Type] [mastership] [remoteConnId]
port number -- values ranging from 1-8
Channel VPI -- Virtual Path Identifier: 0 - 255
Channel VCI -- Virtual Channel Identifier: 0 - 65535 for VCC, * for VPC
Connection Type -- Connection Type : 0 - VCC , non zero - Local
VP Id of the VPC (1 to 1000)
Service Type -- Service Type: 1 - CBR, 2 - VBR, 3 - ABR, 4 - UBR
Controller Type (Signalling) -- 1: PVC (PAR) - Default , 2: SPVC (PNNI)
Mastership -- 1 for master, 2 for slave Default:Slave
Remote end Connection ID -- Format : NodeName.SlotNo.PortNo.ExternalConnId
mgx8250b.1.28.AUSMB8.a > addcon 1 1 1010 0 4 1 1 mgx8250b.0.1.10.1010
Syntax : cnfupcubr "Port.VPI.VCI enable pcr[0+1] cdvt[0+1] IngPcUtil clp_tag "
Port.VPI.VCI -- A unique Port.VPI.VCI identifying a connection
Enable/Disable -- UPC : 1 - Disable, 2 - Enable
PeakCellRate -- PCR [0+1]: 10-PortRate(T1-3622,E1-4528,clearE1-4830),
For IMA,T1-3591,E1-4490,clrE1-4789, multiply rate by #links
CDVT[0+1] -- Cell Delay Variation [0+1]: 1 - 250000 micro_secs
IngPcUtil -- Ingress percentage util: 1 to 127. 0 for default
Clp Tagging -- CLP TAG Enable : 1 - Disable, 2 - Enable
mgx8250b.1.28.AUSMB8.a > cnfupcubr 1.1.1010 2 604 1000 0 1
Building the Trunk-to-Trunk Connection
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 Aug. 5 1999 16:01 EDT
From Remote Remote Route
11.1.11.111 NodeName Channel State Type Avoid COS O
11.1.11.111 wsw-bpx3 9.1.10.1010 Ok ubr
Last Command: addcon 11.1.11.111 wsw-bpx3 9.1.10.1010 ubr 604 * 1000 * *
wsw-bpx3 TN StrataCom BPX 8620 9.2.10 Aug. 5 1999 16:03 EDT
Conn: 11.1.11.111 wsw-bpx3 9.1.10.1010 ubr Status:OK
PCR(0+1) % Util CDVT(0+1) FBTC CLP Set
604/604 1/1 1000/1000 y 1
Path: Route information not applicable for local connections
wsw-bpx3 BXM : OK wsw-bpx3 BXM : OK
Line 11.1 : OK Line 9.1 : OK
OAM Cell RX: Clear NNI : OK
NNI : OK
This Command: dspcon 11.1.11.111
Verifying the Configuration
First, use the show ipx route command to view the contents of the IPX routing table. Next, use the ping command to verfy that you have a good connection.
wsw-7576al# show ipx route
Codes: C - Connected primary network, c - Connected secondary network
S - Static, F - Floating static, L - Local (internal), W - IPXWAN
R - RIP, E - EIGRP, N - NLSP, X - External, A - Aggregate
s - seconds, u - uses, U - Per-user static
2 Total IPX routes. Up to 1 parallel paths and 16 hops allowed.
No default route known.
L AA0000 is the internal network
R BB0000 [07/01] via 0.00bb.0000.0000, 34s, Se2/0/0/1:0
wsw-7576al#
wsw-7206c# show ipx route
Codes: C - Connected primary network, c - Connected secondary network
S - Static, F - Floating static, L - Local (internal), W - IPXWAN
R - RIP, E - EIGRP, N - NLSP, X - External, A - Aggregate
s - seconds, u - uses, U - Per-user static
2 Total IPX routes. Up to 1 parallel paths and 16 hops allowed.
No default route known.
L BB0000 is the internal network
R AA0000 [07/01] via 0.00aa.0000.0000, 19s, Vi1
wsw-7576al# ping ipx BB0000.0000.0000.0001
Type escape sequence to abort.
Sending 5, 100-byte IPXcisco Echoes to BB0000.0000.0000.0001, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/16/20 ms
Caveats
-
At this point, the DS3 on the FRSM-2CT3 will accept only a local clock configuration.
-
Use Frame Forwarding mode for PPP-ATM connections.
-
Remember to set the UPC parameters on all AUSM connections or your data will most likely not be policed to your needs.
-
The Cisco 7200 router is running Cisco IOS 12.0(4)XE for the IMA card. This is a pre-first customer shipped (FCS) image, so beware of possible bugs.
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Related Information
- Cisco WAN Switching Solutions - Cisco Documentation
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| Updated: Oct 04, 2005 | Document ID: 50106 |