Configuring OC3 Ports
This chapter describes the most common configurations for OC3 ports on the Cisco ME 3600X-24CX Series Switch and includes the following sections:
Limitations and Restrictions
The following limitations and restrictions apply when configuring OC3 ports on the Cisco ME 3600X-24CX Series Switch:
- SDH framing mode is supported.
- SONET framing mode is supported.
- HDLC, and PPP, encapsulation are supported.
- Invert data is not supported.
- Frame Relay and SMDS encapsulation are not supported.
- FDL is not supported.
- Idle pattern is not supported on DS3 clear channel.
Note
OC3 port license must be installed on the switch to activate OC3 ports. For information on installing port licences see Configuring Port Licensing.
Configuring the OC-3 Ports
Use the following command to configure the OC-3 ports.
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Switch(config)# card type oc3 slot bay |
Configures the OC-3 Ports:
- slot bay —Specifies the location of the port.
Note The slot number is always 1 and the bay number is always 0 on the Cisco ME 3600X-24CX Series Switch. |
Note
On doing no card type OC3 0 1, the peer box controller will not go down untill the device is reloaded as prompted.
Configuring the Controller
Use the following command to configure the controller for SDH framing:
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Switch(config)# controller sonet slot/bay/port |
Selects the controller to configure and enters controller configuration mode, where:
- slot/bay/port —Specifies the location of the interface.
Note The slot number is always 1 and the bay number is always 0 on the Cisco ME 3600X-24CX Series Switch. Port number range is 0 to 3 Note When the framing is changed the switch must be reloaded. |
Configuring SDH and SONET
The following sections describe how to configure SDH on the OC3 port:
Configuring SDH Mode
To configure SDH mode, complete the following steps:
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Step 1 |
Switch(config-controller)# framing s dh |
Specifies SDH as the frame type. |
Step 2 |
Switch(config-controller)# aug mapping { au-3 | au-4 } |
Configures AUG mapping for SDH framing. Supports au-3 and au-4 aug mapping. The default setting is au-3. |
Step 3 |
Switch(config-controller)# clock source {internal | line} |
Sets the clock source, where:
- internal—Specifies that the internal clock source is used.
- line—Specifies that the network clock source is used. This is the default for T1 and E1.
|
Step 4 |
Switch(config-controller)# au-4 au-4# tug-3 tug-3# or Switch(config-controller)# au-3 au-3# |
Configures AU-3, AU-4, and tributary unit groups, type 3 (TUG-3) for AU-4 and enters specific configuration mode. In SDH framing mode, each AU-3, TUG-3, and AU-4 can be configured with one of these commands. Depending on currently configured AUG mapping setting, this command further specifies TUG-3, AU-3 or AU-4 muxing. The CLI command parser enters into config-ctrlr-tug3 (SDH mode) or config-ctrlr-au3 (SDH mode), which makes only relevant commands visible.
- au-4# —Value is 1.
- tug-3# —Range is from 1 to 3.
- au-3# —Range is from 1 to 3.
Note T1 can only be configured in au-3 mode, E1 can only be configured in the au-4 mode. |
Step 5 |
Creates a CEM group, or channel-group for the AU-3 or AU-4. Valid values are:
- e1— 1–3
- e3— 1–3
- t1 —1–4
- tug-2 —1–7
|
Switch(config-ctrlr-tug3)#
tug-2
1
e1
1
cem-group
1
unframed
Switch(config-ctrlr-tug3)#
tug-2
1
e1
1
cem-group
1
timeslots
1-31
Switch(config-ctrlr-tug3)#
tug-2
1
e1
1 [[
channel-group
channel-group-number] [
timeslots
list-of-timeslots]]
Note DS0 level channelization is not supported for serial interfaces, however it is supported for CEM groups. |
Configuring SONET Mode
The following sections describe how to configure SONET mode on the OC3 port:
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Step 1 |
framing {sonet | sdh}
Router(config)# framing sonet |
Specifies SONET as the framing mode. |
Step 2 |
clock source { line | internal }
Router(config-if)# clock source line |
Specifies the clock source for the POS link, where:
- line —The link uses the recovered clock from the line. This is the default setting.
- internal —The link uses the internal clock source.
|
Step 3 |
loopback {local | network}
Router(config-controller)# loopback {local | network} |
Enables or disables loopback mode on a SONET controller, where:
- local loopback—Loops data from the transmit path to the receive path.
- network loopback—Loops data received on the external port to the transmit path and back out the external port.
The default is disabled loopback. |
Step 4 |
sts-1 {1 - 3}
Router(config-controller)# sts-1 1 - 3 |
Specifies the SONET Synchronous Transport Signal (STS) level and enters STS-1 configuration mode. The starting-number and ending-number arguments indicate the starting and ending STS value of the interface. For OC-3 interfaces, this value is 1. Note Only the 1-3 value is supported on the Cisco ME3600X-24CX switch. |
Step 5 |
mode {ct3 | ct3-e1| t3 | vt-15}
Router(config-ctrlr-sts1)# mode vt-15 |
Specifies the mode of operation of an STS-1 path, where: Note VT-15 and T3 is the only supported mode.
- vt-15—A STS-1 is divided into seven Virtual Tributary Groups (VTG). Each VTG is then divided into four VT1.5's, each carrying a T1.
|
Step 6 |
vtg vtg#
Router(config-ctrlr-sts1)# vtg 2 |
Configures the T1 on the VTG, where:
- vtg# —Specifies the VTG number. For SONET framing, values are 1 to 7.
|
Step 7 |
end
Router(config-if)# end |
Exits configuration mode. |
For information on optional SONET configurations, see Optional Configurations.
Optional Configurations
There are several standard, but optional, configurations that might be necessary to complete the configuration of your port.
Configuring the Encapsulation Method
When traffic crosses a WAN link, the connection needs a Layer 2 protocol to encapsulate traffic. To set the encapsulation method, use the following commands:
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Step 1 |
Switch(config)# interface serial slot / bay / port. au-3 / tug-2 / t1 : channel-group |
Selects the interface to configure and enters interface configuration mode.
- slot / bay / port. au-3 / tug-2 / t1 : channel-group —Specifies the location of the interface.
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Step 2 |
Switch(config-if)# encapsulation encapsulation-type {hdlc | ppp} |
Sets the encapsulation method on the interface, where:
- hdlc—Sets the High-Level Data Link Control (HDLC) protocol for serial interface. This encapsulation method provides the synchronous framing and error detection functions of HDLC without windowing or retransmission. This is the default for synchronous serial interfaces.
- ppp—Sets point-to-point protocol (PPP) for serial interface.
Note Frame relay encapsulation is not supported. |
Configuring the CRC Size for T1
CRC is an error-checking technique that uses a calculated numeric value to detect errors in transmitted data. The 4-Port Channelized OC-3/STM-1 IM uses a 16-bit cyclic redundancy check (CRC) by default, but also supports a 32-bit CRC. The designators 16 and 32 indicate the length (in bits) of the frame check sequence (FCS). A CRC of 32 bits provides more powerful error detection, but adds overhead. Both the sender and receiver must use the same setting.
To set the length of the cyclic redundancy check (CRC) on a T1 interface, use these commands:
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Step 1 |
Switch(config)# interface serial slot / bay / port. au-3 / tug-2 / t1 : channel-group |
Selects the interface to configure and enters interface configuration mode.
- slot / bay / port. au-3 / tug-2 / t1 : channel-group —Specifies the location of the interface.
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Step 2 |
Switch(config-if)# crc {16 | 32} |
Selects the CRC size in bits, where:
- 16—16-bit CRC. This is the default.
- 32—32-bit CRC.
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Configuring Keepalive Value
keepalive [ period [ retries ]]
|
Specifies the frequency at which the Cisco IOS software sends messages to the other end of the line to ensure that a network interface is alive, where:
- period — Specifies the time interval in seconds for sending keepalive packets. The default is 10 seconds.
- retries — Specifies the number of times that the device continues to send keepalive packets without response before bringing the interface down. The default is 3 retries.
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Configuring MTU Value
mtu bytes
|
Configures the maximum packet size for an interface in bytes. The packet size range is 64 - 7673. The default packet size is 4470 bytes. |
Managing Interface Naming
The following sections describe how to manage interface naming on the Cisco ME 3600X-24CX Series Switch optical interface module.
Identifying Slots and Subslot
To specify the physical address for controller or interface configuration, use the interface and controller sonet commands, where:
- slot—Specifies the chassis slot number where the interface module is installed; the slot number is always 1 for interface modules on the Cisco ME 3600X-24CX Series Switch.
- bay—Specifies the subslot where the interface module is installed, the bay number is always 0 for interface modules on the Cisco ME 3600X-24CX Series Switch.
- port—Specifies the OC-3 port number.
For example, if the optical interface module is installed in slot 0 of the chassis, the controller configuration address is specified as controller sonet 1/0/0.
For channelized configuration, the interface address format for t1 is: slot / bay / port. au-3 / tug-2 / t1 : channel-group, the interface address format for E1 is slot / bay / port. au-4 / tug-3 / tug-2 / e1 : channel-group where:
- channel-group —Specifies the logical channel group assigned to the time slots within the T1 link.
Naming Interfaces
Interface names are automatically generated, and the format varies based on the line card operating mode.
The listing below shows the formats of the serial interface for each interface type as well as interface formats for HDLC and CEM formats.
Note
For HDLC framing, use the serial interface format.
If SDH-AUG mapping is au-3:
- interface serial slot / bay / port. au-3 / tug-2 / t1:channel-group
Configuring BERT
BERT (Bit-Error Rate Testing) is used for analyzing quality and for problem resolution of digital transmission equipment. BERT tests the quality of an interface by directly comparing a pseudorandom or repetitive test pattern with an identical locally generated test pattern.
The BERT operation is data-intensive. Regular data cannot flow on the path while the test is in progress. The path is reported to be in alarm state when BERT is in progress and restored to a normal state after BERT has been terminated.
Running Bit Error Rate Testing
Bit error rate testing (BERT) is supported on optical interfaces. The BERT testing is done only over a framed E1 or T1 signal and can be run only on one port at a time.
The interface modules contain onboard BERT circuitry. With this, the interface module software can send and detect a programmable pattern that is compliant with CCITT/ITU O.151, O.152, and O.153 pseudo-random and repetitive test patterns. BERTs allow you to test cables and signal problems in the field.
When running a BER test, your system expects to receive the same pattern that it is transmitting. To help ensure this, two common options are available:
- Use a loopback somewhere in the link or network
- Configure remote testing equipment to transmit the same BER test pattern at the same time
To run a BERT on an interface, perform the following optional tasks beginning in global configuration mode
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Step 1 |
Switch# configure terminal |
Enters global configuration mode. |
Step 2 |
Switch(config)# controller sonet slot/bay/port |
Selects the controller to configure and enters controller configuration mode, where:
- slot/bay/port —Specifies the location of the interface.
The slot number is always 1 and the bay number is always 0 on the Cisco ME 3600X-24CX Series Switch |
Step 3 |
Switch(config-controller)# au-4 au-4# tug-3 tug-3# or Switch(config-controller)# au-3 au-3# |
Configures AU-3, AU-4, and tributary unit groups, type 3 (TUG-3) for AU-4 and enters specific configuration mode. In SDH framing mode, each AU-3, TUG-3, and AU-4 can be configured with one of these commands. Depending on currently configured AUG mapping setting, this command further specifies TUG-3, AU-3 or AU-4 muxing. The CLI command parser enters into config-ctrlr-tug3 (SDH mode) or config-ctrlr-au3 (SDH mode), which makes only relevant commands visible.
- au-4# —Value 1.
- tug-3# —Range is from 1 to 3.
- au-3# —Range is from 1 to 3.
Note T1 can only be configured in au-3 mode, E1 can only be configured in the au-4 mode. |
Step 4 |
Switch(config-ctrlr-tug3)# tug-2 1 e1 1 [[ channel-group channel-group-number] [ timeslots list-of-timeslots]] |
Creates a channel-group for the AU-3 |
Step 5 |
Switch(config-ctrlr-au3)# bert pattern { 0s | 1s | 2^15 | 2^23 } interval minutes |
Specify the BERT pattern for the port and the duration of the test in minutes (1 to 1440 minutes). Note 0s, 1s, 2^15 and 2^23 patterns are supported. |
Step 6 |
Switch(config-ctrlr-au3)# end |
Exits confguration mode. |
Step 7 |
Switch# show controllers sonet slot / bay / port |
Displays the BERT test results. |
The following keywords list different BERT keywords and their descriptions.
Caution
0s, 1s, 2^15 and 2^23 patterns are supported.
Table 4-1 BERT Pattern Descriptions
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|
0s |
Repeating pattern of zeros (...000...). |
1s |
Repeating pattern of ones (...111...). |
2^15 |
Pseudo-random O.151 test pattern that is 32,768 bits in length. |
2^23 |
Pseudo-ramdom 0.151 test pattern that is 1,048,575 bits in length. |
Both the total number of error bits received and the total number of bits received are available for analysis. You can select the testing period from 1 minute to 24 hours, and you can also retrieve the error statistics anytime during the BER test.
Note
To terminate a BER test during the specified test period, use the no bert command.
You can view the results of a BER test at the following times:
- After you terminate the test using the no bert command
- After the test runs completely
- Anytime during the test (in real time)
Example:
Switch(config)#controller sonet 1/0/0
Switch(config-controller)#au-3 1
Switch(config-ctrlr-au3)#tug-2 1 t1 1 bert 2^15 interval 2
Switch(config-ctrlr-au3)#end
*Jul 9 06:00:35.639: %SYS-5-CONFIG_I: Configured from console by consolet
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#controll sonet 1/0/0
Switch(config-controller)#au-3 1
Switch(config-ctrlr-au3)#tug-2 1 t1 1 bert pattern 2^15 interval 2
*Jul 9 06:02:50.231: %LINK-6-BERTSTATUS: Interface T1 1/0/0.1/1/1, BERT is not in sync
*Jul 9 06:02:50.231: %CONTROLLER-5-UPDOWN: Controller SONET 1/0/0 STM1.AU3/TU11/T1 1/1/1, changed state to bert down
*Jul 9 06:02:52.231: %LINK-3-UPDOWN: Interface Serial1/0/0.1/1/1:0, changed state to down
*Jul 9 06:02:53.231: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0/0.1/1/1:0, changed state to down
*Jul 9 06:03:00.231: %LINK-6-BERTSTATUS: Interface T1 1/0/0.1/1/1, BERT is sync
*Jul 9 06:04:50.267: %LINK-6-BERTSTATUS: Interface T1 1/0/0.1/1/1, BERT is done
*Jul 9 06:04:50.267: %CONTROLLER-5-UPDOWN: Controller SONET 1/0/0 STM1.AU3/TU11/T1 1/1/1, changed state to bert up
*Jul 9 06:04:52.267: %LINK-3-UPDOWN: Interface Serial1/0/0.1/1/1:0, changed state to up
*Jul 9 06:04:53.267: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0/0.1/1/1:0, changed state to up
To display BERT Results use the show controllers sonet command:
Switch#show controllers sonet 1/0/0.1/1/1
AU-3 1, TUG-2 1, T1 1 (C-11 1/1/1) is down
VT Receiver has no alarm.
Framing is ESF, Clock Source is Internal
BERT test result (running)
Test Pattern : 2^15, Status : Sync, Sync Detected : 1
Interval : 2 minute(s), Time Remain : 1 minute(s)
Bit Errors (since BERT started): 0 bits,
Bits Received (since BERT started): 0 Kbits
Bit Errors (since last sync): 0 bits
Bits Received (since last sync): 0 Kbits
Data in current interval (90 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs
0 Unavail Secs, 0 Stuffed Secs
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs
0 Unavail Secs, 0 Stuffed Secs
Total Data (last 1 15 minute intervals):
0 Line Code Violations,0 Path Code Violations,
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs
0 Unavail Secs, 0 Stuffed Secs
Note
Bit Errors and Bits Received are always 0. The driver cannot detect the number of bits/error bits. The show controller <>/<>/<> bert command can only give information about SYNC state.
Configuring Circuit Emulation
This section provides information about how to configure CEM. CEM provides a bridge between a time-division multiplexing (TDM) network and a packet network, such as Multiprotocol Label Switching (MPLS). The router encapsulates the TDM data in the MPLS packets and sends the data over a CEM pseudowire to the remote provider edge (PE) router. Thus, function as a physical communication link across the packet network.
Note
Only 512 pseudowires are supported on the Cisco ME3600X-24CX switch.
The following sections describe how to configure CEM:
Note
CEM is used as an element in configuring pseudowires including Structure-Agnostic TDM over Packet (SAToP) and Circuit Emulation Service over Packet-Switched Network (CESoPSN). For more information about configuring pseudowires, see Chapter8, “Configuring Pseudowire”
Configuring a CEM Group
The following section describes how to configure a CEM group on the Cisco ME 3600X-24CX Series Switch.
Note
You cannot configure the same cem group ID on different controllers.
Configuring a CEM Group in SDH Mode
To configure a CEM group in SDH Mode use the following procedure:
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
controller sonet slot / bay / port
4.
au-4 au-4# tug-3 tug-3#
or
au-3 au3
5.
tug-2 tug-2 t1 t1 cem-group group-number { unframed | timeslots timeslot }
6.
end
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Step 1 |
enable |
Enables privileged EXEC mode.
- Enter your password if prompted.
|
Step 2 |
configure terminal |
Enters global configuration mode. |
Step 3 |
controller sonet slot/bay/port |
Selects the controller to configure and enters controller configuration mode, where:
- slot/bay/port —Specifies the location of the interface.
The slot number is always 1 and the bay number is always 0 on the Cisco ME 3600X-24CX Series Switch |
Step 4 |
au-4 au-4# tug-3 tug-3# or au-3 au-3# |
Configures AU-3, AU-4, and tributary unit groups, type 3 (TUG-3) for AU-4 and enters specific configuration mode. Depending on the framing mode of SONET or SDH, each STS-1, AU-3, TUG-3, and AU-4 can be configured with one of these commands. Depending on currently configured AUG mapping setting, this command further specifies TUG-3, AU-3, AU-4 or STS-1 muxing. The CLI command parser enters into config-ctrlr-tug3 (SDH mode), config-ctrlr-au3 (SDH mode), or config-ctrlr-sts1 parser mode (SONET mode), which makes only relevant commands visible.
- au-4# —Value is 1.
- tug-3# —Range is from 1 to 3.
- au-3# —Range is from 1 to 3.
T1 can only be configured in au-3 mode, E1 can only be configured in the au-4 mode. |
Step 5 |
Creates a CEM group, or channel-group for the AU-3 or AU-4. Valid values are:
- e1— 1–3
- t1 —1–4
- tug-2 —1–7
cem-group group-number { unframed | timeslots timeslot } |
Switch(config-ctrlr-tug3)#
tug-2
1
e1
1
cem-group
1
unframed
Switch(config-ctrlr-tug3)#
tug-2
1
e1
1
cem-group
1
timeslots
1-31
Switch(config-ctrlr-tug3)#
tug-2
1
e1
1 [[
channel-group
channel-group-number] [
timeslots
list-of-timeslots]]
DS0 level channelization is not supported for serial interfaces, however it is supported for CEM groups. Creates a circuit emulation channel from one or more time slots of a T1 or E1 line.
- The group-number keyword identifies the cem dircuit number to be used for this cem circuit. This number must be unique across all cem-circuits. The range is 0 to 2015.
- Use the unframed keyword to specify that a single CEM channel is being created including all time slots and the framing structure of the line.This unframed keyword is used to create an SAToP circuit.
- Use the timeslots keyword and the timeslot argument to specify the time slots to be included in the CEM channel. The list of time slots may include commas and hyphens with no spaces between the numbers. The range for T1 is 1 to 24. The range for E1 is 1 to 31.
|
Step 6 |
end |
Exits controller configuration mode and returns to privileged EXEC mode. |
Configuring a CEM group in SONET Mode
To configure a CEM group in SONET mode use the following procedure:
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
controller sonet slot / bay / port
4.
framing sonet sdh
5.
sts-1 sts1number
6.
cem-group group-number { unframed | timeslots timeslot }
7.
end
|
|
|
Step 1 |
enable |
Enables privileged EXEC mode.
- Enter your password if prompted.
|
Step 2 |
configure terminal |
Enters global configuration mode. |
Step 3 |
controller sonet slot/bay/port |
Selects the controller to configure and enters controller configuration mode, where:
- slot/bay/port —Specifies the location of the interface.
The slot number is always 1 and the bay number is always 0 on the Cisco ME 3600X-24CX Series Switch |
Step 4 |
framing {sonet | sdh} |
Specifies SONET as the framing mode. |
Step 5 |
sts-1 {1 - 3} |
Specifies the SONET Synchronous Transport Signal (STS) level and enters STS-1 configuration mode. The starting-number and ending-number arguments indicate the starting and ending STS value of the interface. For OC-3 interfaces, this value is 1. Note Only the 1-3 value is supported on the Cisco ME3600X-24CX switch. |
Step 6 |
mode {ct3 | ct3-e1 | t3 | vt-15} |
Specifies the mode of operation of an STS-1 path, where: Note VT-15 is the only supported mode. Note ct3 and ct3-e1 mode are not supported.
- t3—STS-1 carries an unchannelized (clear channel) T3.
- vt-15—A STS-1 is divided into seven Virtual Tributary Groups (VTG). Each VTG is then divided into four VT1.5's, each carrying a T1.
|
Step 7 |
cem-group group-number { unframed | timeslots timeslot } |
Creates a circuit emulation channel from one or more time slots of a T1 or E1 line.
- The group-number keyword identifies the cem dircuit number to be used for this cem circuit. This number must be unique across all cem-circuits. The range is 0 to 2015.
- Use the unframed keyword to specify that a single CEM channel is being created including all time slots and the framing structure of the line.This unframed keyword is used to create an SAToP circuit.
- Use the timeslots keyword and the timeslot argument to specify the time slots to be included in the CEM channel. The list of time slots may include commas and hyphens with no spaces between the numbers. The range for T1 is 1 to 24. The range for E1 is 1 to 31.
|
Step 8 |
end |
Exits controller configuration mode and returns to privileged EXEC mode. |
Example
Switch(config)#controller sonet 0/5/0
Switch(config-controller)#aug mapping au-4 1 tug-3 1
Switch(config-ctrlr-tug3)#tug-2 1 e1 1 channel-group 0 timeslots 1-31
The following example shows Serial interface configuration:
Switch(config)#controller sonet 0/5/0
Switch(config-controller)#aug mapping au-4 1 tug-3 1
Switch(config-ctrlr-tug3)#tug-2 1 e1 1 channel-group 0 timeslots 1-31
The following example shows CEM interface configuration:
Switch(config)#controller sonet 0/5/0
Switch (config-controller)#aug mapping au-4
Switch (config-controller)#au-4 1 tug-3 1
Switch (config-ctrlr-tug3)#tug-2 1 e1 1
Switch (config-ctrlr-tug3)#tug-2 1 e1 2
Switch (config-ctrlr-tug3)#tug-2 1 e1 2 cem-group 1 timeslots 1-10
An unframed cem group can also be configured:
Switch (config-ctrlr-tug3)#tug-2 1 e1 3 cem-group 2 unframed
The following example shows T1 Serial interface configuration:
Switch (config)#controller sonet 0/5/1
Switch (config-controller)#aug mapping au-3
Switch (config-controller)#au-3 1
Switch (config-ctrlr-au3)# tug-2 1 t1 1 channel-group 4 timeslots 1-24
The following example shows T1 CEM interface configuration:
Switch (config)#controller sonet 0/5/1
Switch (config-controller)#aug mapping au-3
Switch (config-controller)#au-3 1
Switch (config-ctrlr-au3)# tug-2 1 t1 2 cem-group 6 timeslots 1-24 ?
To verify the configuration on the interface use the show ip interface command:
Switch #show ip interface brief
Interface IP-Address OK? Method Status Protocol
Te0/0/0 unassigned YES TFTP up up
GigabitEthernet0/1/0 unassigned YES unset administratively down down
GigabitEthernet0/1/1 unassigned YES unset down down
GigabitEthernet0/1/2 unassigned YES unset administratively down down
GigabitEthernet0/1/3 unassigned YES unset administratively down down
GigabitEthernet0/1/4 unassigned YES unset administratively down down
GigabitEthernet0/1/5 unassigned YES unset administratively down down
GigabitEthernet0/1/6 unassigned YES unset down down
GigabitEthernet0/1/7 unassigned YES unset down down
Te0/2/0 unassigned YES unset down down
Te0/3/0 unassigned YES TFTP down down
Serial0/5/0.1/1/1/1:0 unassigned YES unset down down > E1 serial interface
Serial0/5/1.1/1/1:4 unassigned YES unset down down >T1 Serial interface
GigabitEthernet0 7.48.10.113 YES NVRAM up up
CEM0/5/0 unassigned YES unset down down >CEM E1 interface
CEM0/5/1 unassigned YES unset down down >CEM T1 interface
*****************************************************************************
Switch #show ip interface brief
Interface IP-Address OK? Method Status Protocol
Te0/0/0 unassigned YES TFTP up up
GigabitEthernet0/1/0 unassigned YES unset administratively down down
GigabitEthernet0/1/1 unassigned YES unset down down
GigabitEthernet0/1/2 unassigned YES unset administratively down down
GigabitEthernet0/1/3 unassigned YES unset administratively down down
GigabitEthernet0/1/4 unassigned YES unset administratively down down
GigabitEthernet0/1/5 unassigned YES unset administratively down down
GigabitEthernet0/1/6 unassigned YES unset down down
GigabitEthernet0/1/7 unassigned YES unset down down
Te0/2/0 unassigned YES unset down down
Te0/3/0 unassigned YES TFTP down down
Serial0/5/0.1/1/1/1:0 unassigned YES unset down down
Serial0/5/1.1/1/1:4 unassigned YES unset down down
GigabitEthernet0 7.48.10.113 YES NVRAM up up
CEM0/5/0 unassigned YES unset down down
CEM0/5/1 unassigned YES unset down down
Switch#configure terminal
Switch (config)#interface Serial0/5/0.1/1/1/1:0
Switch (config-if)#ip address 10.10.10.10 255.255.255.0
Switch (config-if)#no shutdown
Switch (config)#interface CEM0/5/0
Switch (config-if-cem)#xconnect 2.2.2.2 100 encapsulation mpls
Using CEM Classes
A CEM class allows you to create a single configuration template for multiple CEM pseudowires. Follow these steps to configure a CEM class:
Note
The CEM parameters at the local and remote ends of a CEM circuit must match; otherwise, the pseudowire between the local and remote PE routers will not come up.
Note
You cannot apply a CEM class to other pseudowire types such as ATM over MPLS.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
class cem classname
4.
payload-size size
5.
dejitter-buffer size
6.
exit
7.
interface cem 1/ 0 /number
8.
cem group-number
9.
cem class cem-class-name
10.
xconnect peer-ip-address vc-id { encapsulation { mpls }
11.
exit
12.
exit
|
|
|
Step 1 |
enable |
Enables privileged EXEC mode.
- Enter your password if prompted.
|
Step 2 |
configure terminal |
Enters global configuration mode. |
Step 3 |
Switch(config)# class cem mycemclass |
Creates a new CEM class. |
Step 4 |
payload-size size dejitter-buffer size |
Enter the configuration commands common to the CEM class. This example specifies a sample rate, payload size, and dejitter buffer. |
Step 5 |
Switch(config-cem-class)# exit |
Returns to the config prompt. |
Step 6 |
Switch(config)# interface cem 1/0/1 Switch(config-if)# cem class cem-class-name Switch(config-if-cem)# xconnect 192.0.2.1 200 encapsulation mpls |
Configure the CEM interface that you want to use for the new CEM class. Note The use of the xconnect command can vary depending on the type of pseudowire you are configuring. |
Step 7 |
Switch(config-if-cem)# exit Switch(config-if)# |
Exits the CEM interface. |
Step 8 |
exit |
Exits configuration mode. |
Configuration Examples for CEM:
The following examples show how to configure a CESoP CEM circuit:
Switch(config)#controller sonet 1/0/0
Switch(config-controller)#au-3 1
Switch(config-ctrlr-au3)#tug-2 1 t1 2 cem-group 3 timeslots 1-24
Switch(config)#int cem 1/0/0
Switch(config-if-cem)#xconnect 12.12.12.12 3 encapsulation mpls
Switch(cfg-if-cem-xconn)#end
The following example shows how to configure a SAToP CEM circuit:
Switch(config-controller)#controller sonet 1/0/2
Switch(config-controller)#au-3 1
Switch(config-ctrlr-au3)#tug-2 1 t1 1 cem-group 4 unframed
Switch(config-if)#int cem 1/0/2
Switch(config-if-cem)#xconnect 12.12.12.12 4 encapsulation mpls
Switch(cfg-if-cem-xconn)#end
Configuring CEM Parameters
The following sections describe the parameters you can configure for CEM circuits.
Note
The CEM parameters at the local and remote ends of a CEM circuit must match; otherwise, the pseudowire between the local and remote PE routers will not come up.
Configuring Payload Size (Optional)
To specify the number of bytes encapsulated into a single IP packet, use the pay-load size command. The size argument specifies the number of bytes in the payload of each packet. The range is from 192 to 256 bytes.
Default payload sizes for an unstructured CEM channel are as follows:
- E1 = 256 bytes
- T1 = 192 bytes
Default payload sizes for a structured CEM channel depend on the number of time slots that constitute the channel. Payload size (L in bytes), number of time slots (N), and packetization delay (D in milliseconds) have the following relationship: L = 8*N*D. The default payload size is selected in such a way that the packetization delay is always 1 millisecond. For example, a structured CEM channel of 16xDS0 has a default payload size of 128 bytes. The minimum payload size for DS3 clear-channel is 1024.
The payload size must be an integer of the multiple of the number of time slots for structured CEM channels.
Setting the Dejitter Buffer Size
To specify the size of the dejitter buffer used to compensate for the network filter, use the dejitter-buffer size command. The configured dejitter buffer size is converted from milliseconds to packets and rounded up to the next integral number of packets. Use the size argument to specify the size of the buffer, in milliseconds. The range is from 1 to 500 ms; the default is 5 ms. The maximum dejitter buffer value for DS3 clear channel is 5ms.
Shutting Down a CEM Channel
To shut down a CEM channel, use the shutdown command in CEM configuration mode. The shutdown command is supported only under CEM mode and not under the CEM class.
Configuring Loopbacks
The following sections describe how to set loopbacks:
Note
Only one loopback can be configured at conroller level or PDH level across all OC3 ports and PDHs.
Setting a Loopback on the Controller
To set a loopback on the controller, perform the following task:
|
|
Switch# configure terminal |
Enters global configuration mode. |
Switch(config)# controller sonet slot / bay / port |
Selects the controller to configure and enters controller configuration mode, where:
- slot/bay/port —Specifies the location of the interface.
Note The slot number is always 1 and the bay number is always 0 on the Cisco ME 3600X-24CX Series Switch |
Switch(config-controller)# loopback { local | network } |
Sets a loopback to test the OC3 port. |
Setting a Loopback at the PDH Level
You can use the following loopback commands on the controller in global configuration mode:
|
|
Switch(config)# controller sonet slot / bay / port |
Selects the controller to configure and enters controller configuration mode, where:
- slot/bay/port —Specifies the location of the interface.
Note The slot number is always 1 and the bay number is always 0 on the Cisco ME 3600X-24CX Series Switch |
Switch(config-controller)# au-4 au-4# tug-3 tug-3# or Switch(config-controller)# au-3 au-3# |
Configures AU-3, AU-4, and tributary unit groups, type 3 (TUG-3) for AU-4 and enters specific configuration mode. In SDH framing mode, each AU-3, TUG-3, and AU-4 can be configured with one of these commands. Depending on currently configured AUG mapping setting, this command further specifies TUG-3, AU-3 or AU-4 muxing. The CLI command parser enters into config-ctrlr-tug3 (SDH mode) or config-ctrlr-au3 (SDH mode), which makes only relevant commands visible.
- au-4# —Value is 1.
- tug-3# —Range is from 1 to 3.
- au-3# —Range is from 1 to 3.
Note T1 can only be configured in au-3 mode, E1 can only be configured in the au-4 mode. |
Switch(config-ctrlr-au3)# tug-2 tug-2 t1 t1 loopback [ local | network { line | payload } | remote { line { fdl | inband } | payload ] |
When framing in SDH with AU-3 AUG mapping, set a loopback to test a T1 link. Note The remote {line {fdl | inband} | payload keywords are displayed on the switch however they are not supported. |
Note
To remove a loopback, use the no loopback command.
Table 4-2 Loopback Descriptions
|
|
loopback local |
Loops the incoming receive signal back out to the transmitter. You can specify whether to use the line or payload. |
local line |
The incoming signal is looped back in the interface module using the framer’s line loopback mode. The framer does not reclock or reframe the incoming data. All incoming data is received by the interface module driver. |
local payload |
Loops the incoming signal back in the interface module using the payload loopback mode of the framer. The framer reclocks and reframes the incoming data before sending it back out to the network. When in payload loopback mode, an all 1s data pattern is received by the local HDLC receiver and the clock source is automatically set to line (overriding the clock source command). When the payload loopback is ended, the clock source returns to the last setting selected by the clock source command. |
loopback remote iboc |
Attempts to set the far-end T1 interface into line loopback. This command sends an in-band bit-oriented code to the far-end to cause it to go into line loopback. This command is available when using ESF or SF framing mode. |
network line |
Loops the incoming signal back in the interface module using the line loopback mode of the framer. The framer does not reclock or reframe the incoming data. All incoming data is received by the interface module driver. |
network payload |
Loops the incoming signal back using the payload loopback mode of the framer. The framer reclocks and reframes the incoming data before sending it back out to the network. When in payload loopback mode, an all 1s data pattern is received by the local HDLC receiver, and the clock source is automatically set to line (overriding the clock source command). When the payload loopback is ended, the clock source returns to the last setting selected by the clock source command. |
Configuration Examples
Controller level Loopbacks:
Switch#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#controller sonet 1/0/0
Switch(config-controller)#loopback local
PDH level loopbacks:
Switch#configure terminal
Switch(config)#controller sonet 1/0/0
Switch(config-controller)#au-3 1
Switch(config-ctrlr-au3)#tug-2 1 t1 4 loopback network line
Configuring DS3 Framing on OC3 port
This feature supports the configuration of DS3 framing on OC3 ports on the Cisco ME3600X-24CX switch.
Configuring DS3 Clear Channel in SONET Mode
To configure a CEM group in SONET mode use the following procedure:
|
|
|
Step 1 |
enable |
Enables privileged EXEC mode.
- Enter your password if prompted.
|
Step 2 |
configure terminal |
Enters global configuration mode. |
Step 3 |
controller sonet slot/bay/port |
Selects the controller to configure and enters controller configuration mode, where:
- slot/bay/port —Specifies the location of the interface.
Note The slot number is always 1 and the bay number is always 0 on the Cisco ME 3600X-24CX Series Switch Port number range is 0 to 3. |
Step 4 |
framing {sonet | sdh} |
Specifies SONET as the framing mode. |
Step 5 |
sts-1 {1 - 3} |
Specifies the SONET Synchronous Transport Signal (STS) level and enters STS-1 configuration mode. The starting-number and ending-number arguments indicate the starting and ending STS value of the interface. For OC-3 interfaces, this value is 1. Only the 1-3 value is supported on the Cisco ME3600X-24CX switch. |
Step 6 |
mode {ct3 | ct3-e1 | t3 | vt-15} |
Specifies the mode of operation of an STS-1 path, where: Note t3 is the only supported mode in DS3 clear channel.
- t3—STS-1 carries an unchannelized (clear channel) T3.
- vt-15—A STS-1 is divided into seven Virtual Tributary Groups (VTG). Each VTG is then divided into four VT1.5's, each carrying a T1.
|
Step 7 |
end |
Exits controller configuration mode and returns to privileged EXEC mode. |
Configuring DS3 Clear Channel in SDH Mode
To configure DS3 clear channel in SDH Mode use the following procedure:
|
|
|
Step 1 |
enable |
Enables privileged EXEC mode.
- Enter your password if prompted.
|
Step 2 |
configure terminal |
Enters global configuration mode. |
Step 3 |
controller sonet slot/bay/port |
Selects the controller to configure and enters controller configuration mode, where:
- slot/bay/port —Specifies the location of the interface.
Note The slot number is always 1 and the bay number is always 0 on the Cisco ME 3600X-24CX Series Switch Port number range is 0 to 3. |
Step 4 |
framing {sonet | sdh} |
Specifies SDH as the framing mode. |
Step 5 |
Switch(config-controller)# aug mapping { au-3 | au-4 } |
Configures AUG mapping for SDH framing. If the AUG mapping is configured to be AU-4, then the following muxing, alignment, and mapping will be used: TUG-3 <--> VC-4 <--> AU-4 <--> AUG Only AU-4 mapping is supported in SDH mode. |
Step 6 |
Switch(config-controller)# au-4 au-4# tug-3 tug-3# or Switch(config-controller)# au-3 au-3# |
Configures AU-3, AU-4, and tributary unit groups, type 3 (TUG-3) for AU-4 and enters specific configuration mode. In SDH framing mode, each AU-3, TUG-3, and AU-4 can be configured with one of these commands. Depending on currently configured AUG mapping setting, this command further specifies TUG-3, AU-3 or AU-4 muxing. The CLI command parser enters into config-ctrlr-tug3 (SDH mode) or config-ctrlr-au3 (SDH mode), which makes only relevant commands visible.
- au-4# —Value is 1.
- tug-3# —Range is from 1 to 3.
- au-3# —Range is from 1 to 3.
Note T1 can only be configured in au-3 mode, E1 can only be configured in the au-4 mode. |
Step 7 |
mode {ct12 | e3 | t3} |
Specifies the mode of operation of an STS-1 path, where: Note e3 is the only supported mode in SDH mode.
- e3—STS-1 carries an unchannelized (clear channel) T3.
- ct12—A STS-1 is divided into seven e1. Each e1 is then divided into three e1’s.
|
Step 8 |
end |
Exits controller configuration mode and returns to privileged EXEC mode. |
Verifying Interface Configuration
Besides using the show running-configuration command to display your Cisco ME 3600X-24CX Series Switch configuration settings, you can use the show interface serial and the show controllers sonet commands to get detailed information on a per-port basis.
Verifying Per-Port Interface Status
To find detailed interface information on a per-port basis on an optical interface module, use the show interface serial and show controllers sonet commands.
Output of the show interface serial command:
Switch#show interface Serial 1/0/0.1/1/1:0
Serial1/0/0.1/1/1:0 is up, line protocol is up
Hardware is SPA_TYPE_WHALES2_OCX
Internet address is 1.1.1.1/24
MTU 1500 bytes, BW 1536 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, crc 16, loopback not set
Last input 00:00:03, output 00:00:06, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
85 packets input, 7154 bytes, 0 no buffer
Received 72 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
98 packets output, 8558 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions no alarm present
VC 0: timeslot(s): 1-24, Transmitter delay 0, non-inverted data
Output of the show controller sonet command:
Switch#show controllers sonet
Hardware is SPA_TYPE_WHALES2_OCX
Applique type is Channelized Sonet/SDH
Clock Source is Line, AUG mapping is AU3.
Type: SDH, Line Coding: NRZ,
LOS = 0 LOF = 0 BIP(B1) = 0
AIS = 0 RDI = 0 REI = 0 BIP(B2) = 0
Asserted/Active Alarms: None
Alarm reporting enabled for: SLOS SLOF SF B1-TCA B2-TCA
BER thresholds: SF = 10e-3 SD = 10e-6
TCA thresholds: B1 = 10e-6 B2 = 10e-6
AIS = 0 RDI = 0 REI = 0 BIP(B3) = 0
LOP = 0 PSE = 0 NSE = 0 NEWPTR = 0
Asserted/Active Alarms: None
Alarm reporting enabled for: PLOP LOM B3-TCA
TCA threshold: B3 = 10e-6
PATH TRACE BUFFER : STABLE
C9 45 31 20 31 2F 30 2E 31 20 20 20 20 20 20 00.E1 1/0.1.
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
AIS = 1 RDI = 0 REI = 0 BIP(B3) = 0
LOP = 0 PSE = 0 NSE = 0 NEWPTR = 0
Detected Alarms: PAIS PPLM
Asserted/Active Alarms: PAIS
Alarm reporting enabled for: PLOP LOM B3-TCA
TCA threshold: B3 = 10e-6
PATH TRACE BUFFER : STABLE
A7 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
AIS = 1 RDI = 0 REI = 0 BIP(B3) = 0
LOP = 0 PSE = 0 NSE = 0 NEWPTR = 0
Detected Alarms: PAIS PPLM
Asserted/Active Alarms: PAIS
Alarm reporting enabled for: PLOP LOM B3-TCA
TCA threshold: B3 = 10e-6
PATH TRACE BUFFER : STABLE
A7 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................
Hardware is SPA_TYPE_WHALES2_OCX
AU-3 1, TUG-2 1, T1 1 (C-11 1/1/1) is up
VT Receiver has no alarm.
Framing is ESF, Clock Source is Internal
Data in current interval (540 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs
0 Unavail Secs, 0 Stuffed Secs
AU-3 1, TUG-2 1, T1 2 (C-11 1/1/2)
AU-3 1, TUG-2 1, T1 3 (C-11 1/1/3)
AU-3 1, TUG-2 1, T1 4 (C-11 1/1/4)
AU-3 1, TUG-2 2, T1 1 (C-11 1/2/1)
AU-3 1, TUG-2 2, T1 2 (C-11 1/2/2)
AU-3 1, TUG-2 2, T1 3 (C-11 1/2/3)
AU-3 1, TUG-2 2, T1 4 (C-11 1/2/4)
AU-3 1, TUG-2 3, T1 1 (C-11 1/3/1)
AU-3 1, TUG-2 3, T1 1 (C-11 1/3/1)
AU-3 1, TUG-2 3, T1 2 (C-11 1/3/2)
AU-3 1, TUG-2 3, T1 3 (C-11 1/3/3)
AU-3 1, TUG-2 3, T1 4 (C-11 1/3/4)
AU-3 1, TUG-2 4, T1 1 (C-11 1/4/1)
AU-3 1, TUG-2 4, T1 2 (C-11 1/4/2)
AU-3 1, TUG-2 4, T1 3 (C-11 1/4/3)
AU-3 1, TUG-2 4, T1 4 (C-11 1/4/4)
AU-3 1, TUG-2 5, T1 1 (C-11 1/5/1)
AU-3 1, TUG-2 5, T1 2 (C-11 1/5/2)
AU-3 1, TUG-2 5, T1 3 (C-11 1/5/3)
AU-3 1, TUG-2 5, T1 4 (C-11 1/5/4)
AU-3 1, TUG-2 6, T1 1 (C-11 1/6/1)
AU-3 1, TUG-2 6, T1 2 (C-11 1/6/2)
AU-3 1, TUG-2 6, T1 3 (C-11 1/6/3)
AU-3 1, TUG-2 6, T1 4 (C-11 1/6/4)
AU-3 1, TUG-2 7, T1 1 (C-11 1/7/1)
AU-3 1, TUG-2 7, T1 2 (C-11 1/7/2)
AU-3 1, TUG-2 7, T1 3 (C-11 1/7/3)
AU-3 1, TUG-2 7, T1 4 (C-11 1/7/4)
STM1.AU3 1/0/0.2 is down.
Hardware is SPA_TYPE_WHALES2_OCX
AU-3 2, TUG-2 1, T1 1 (C-11 2/1/1)
AU-3 2, TUG-2 1, T1 2 (C-11 2/1/2)
AU-3 2, TUG-2 1, T1 3 (C-11 2/1/3)
AU-3 2, TUG-2 1, T1 4 (C-11 2/1/4)
AU-3 2, TUG-2 2, T1 1 (C-11 2/2/1)
AU-3 2, TUG-2 2, T1 2 (C-11 2/2/2)
AU-3 2, TUG-2 2, T1 3 (C-11 2/2/3)
AU-3 2, TUG-2 2, T1 4 (C-11 2/2/4)
AU-3 2, TUG-2 3, T1 1 (C-11 2/3/1)
AU-3 2, TUG-2 3, T1 2 (C-11 2/3/2)
AU-3 2, TUG-2 3, T1 3 (C-11 2/3/3)
AU-3 2, TUG-2 3, T1 4 (C-11 2/3/4)
AU-3 2, TUG-2 4, T1 1 (C-11 2/4/1)
AU-3 2, TUG-2 4, T1 2 (C-11 2/4/2)
AU-3 2, TUG-2 4, T1 3 (C-11 2/4/3)
AU-3 2, TUG-2 4, T1 4 (C-11 2/4/4)
AU-3 2, TUG-2 5, T1 1 (C-11 2/5/1)
AU-3 2, TUG-2 5, T1 2 (C-11 2/5/2)
AU-3 2, TUG-2 5, T1 3 (C-11 2/5/3)
AU-3 2, TUG-2 5, T1 4 (C-11 2/5/4)
AU-3 2, TUG-2 6, T1 1 (C-11 2/6/1)
AU-3 2, TUG-2 6, T1 2 (C-11 2/6/2)
AU-3 2, TUG-2 6, T1 3 (C-11 2/6/3)
AU-3 2, TUG-2 6, T1 4 (C-11 2/6/4)
AU-3 2, TUG-2 7, T1 1 (C-11 2/7/1)
AU-3 2, TUG-2 7, T1 2 (C-11 2/7/2)
AU-3 2, TUG-2 7, T1 3 (C-11 2/7/3)
AU-3 2, TUG-2 7, T1 4 (C-11 2/7/4)
STM1.AU3 1/0/0.3 is down.
Hardware is SPA_TYPE_WHALES2_OCX
AU-3 3, TUG-2 1, T1 1 (C-11 3/1/1)
AU-3 3, TUG-2 1, T1 2 (C-11 3/1/2)
AU-3 3, TUG-2 1, T1 3 (C-11 3/1/3)
AU-3 3, TUG-2 1, T1 4 (C-11 3/1/4)
AU-3 3, TUG-2 2, T1 1 (C-11 3/2/1)
AU-3 3, TUG-2 2, T1 2 (C-11 3/2/2)
AU-3 3, TUG-2 2, T1 3 (C-11 3/2/3)
AU-3 3, TUG-2 2, T1 4 (C-11 3/2/4)
AU-3 3, TUG-2 3, T1 1 (C-11 3/3/1)
AU-3 3, TUG-2 3, T1 2 (C-11 3/3/2)
AU-3 3, TUG-2 3, T1 3 (C-11 3/3/3)
AU-3 3, TUG-2 3, T1 4 (C-11 3/3/4)
AU-3 3, TUG-2 4, T1 1 (C-11 3/4/1)
AU-3 3, TUG-2 4, T1 2 (C-11 3/4/2)
AU-3 3, TUG-2 4, T1 3 (C-11 3/4/3)
AU-3 3, TUG-2 4, T1 4 (C-11 3/4/4)
AU-3 3, TUG-2 5, T1 1 (C-11 3/5/1)
AU-3 3, TUG-2 5, T1 2 (C-11 3/5/2)
AU-3 3, TUG-2 5, T1 3 (C-11 3/5/3)
AU-3 3, TUG-2 5, T1 4 (C-11 3/5/4)
AU-3 3, TUG-2 6, T1 1 (C-11 3/6/1)
AU-3 3, TUG-2 6, T1 2 (C-11 3/6/2)
AU-3 3, TUG-2 6, T1 3 (C-11 3/6/3)
AU-3 3, TUG-2 6, T1 4 (C-11 3/6/4)
AU-3 3, TUG-2 7, T1 1 (C-11 3/7/1)
AU-3 3, TUG-2 7, T1 2 (C-11 3/7/2)
AU-3 3, TUG-2 7, T1 3 (C-11 3/7/3)
AU-3 3, TUG-2 7, T1 4 (C-11 3/7/4)
For additional examples of the show commands here, see the Cisco IOS Interface and Hardware Component Command Reference.
Troubleshooting
You can use the following commands to verify your configuration:
- show cem circuit —shows information about the circuit state, administrative state, the CEM ID of the circuit, and the interface on which it is configured. If xconnect is configured under the circuit, the command output also includes information about the attached circuit.
- show cem circuit summary— Displays the number of circuits which are up or down per interface basis.
- show controller sonet slot / bay / port transceiver [ status | idprom [ brief | detail ]] — Displays information about the optical transceiver
- show mpls l2transport vc —Displays the state of local and peer access circuits
- show running configuration —Shows detail on each CEM group
- show xconnect all —Displays the state of the pseudowire and local and peer access circuits
To provide information about system processes, the Cisco IOS software includes an extensive list of EXEC commands that begin with the word show, which, when executed, display detailed tables of system information..
Configuration Examples
This section includes the following configuration examples:
Example of Cyclic Redundancy Check Configuration
The following example configures CRC on a T1 interface:
! Specify the interface to configure and enter interface configuration mode.
Switch(config)# interface serial 2/0/0.1
Switch(config-if)# crc 32
Example of Show Commands Output
The following example show output from show controller sonet port / bay / slot tranceiver status command:
Switch#show controllers sonet 1/0/0 transceiver status
The Transceiver in slot 1 subslot 0 port 0 is enabled.
Module temperature = +43.550 C
Transceiver Tx supply voltage = 3304.8 mVolts
Transceiver Tx bias current = 5630 uAmps
Transceiver Tx power = -11.8 dBm
Transceiver Rx optical power = -23.0 dBm
The following example show output from show controller sonet port / bay / slot tranceiver idprom command:
Switch#show controllers sonet 1/0/0 transceiver idprom brief
IDPROM for transceiver CHOCX_W2_0/0:
Description = SFP or SFP+ optics (type 3)
Transceiver Type: = OC3 IR-1/STM1 S-1.1 (3)
Product Identifier (PID) = SFP-OC3-IR1
Serial Number (SN) = SPC144905RT
Vendor Name = CISCO-SUMITOMO
Vendor OUI (IEEE company ID) = 00.00.5F (95)
Cisco part number = 10-1966-01
Date code (yy/mm/dd) = 10/12/03
Nominal bitrate = OC3/STM1 (200 Mbits/s)
Minimum bit rate as % of nominal bit rate = not specified
Maximum bit rate as % of nominal bit rate = not specified
Switch#show controllers sonet 1/0/0 transceiver idprom detail
IDPROM for transceiver CHOCX_W2_0/0:
Description = SFP or SFP+ optics (type 3)
Transceiver Type: = OC3 IR-1/STM1 S-1.1 (3)
Product Identifier (PID) = SFP-OC3-IR1
Serial Number (SN) = SPC144905RT
Vendor Name = CISCO-SUMITOMO
Vendor OUI (IEEE company ID) = 00.00.5F (95)
Cisco part number = 10-1966-01
Date code (yy/mm/dd) = 10/12/03
Nominal bitrate = OC3/STM1 (200 Mbits/s)
Minimum bit rate as % of nominal bit rate = not specified
Maximum bit rate as % of nominal bit rate = not specified
The transceiver type is 3
Link reach for 9u fiber (km) = IR-1(15km) (15)
Link reach for 50u fiber (m) = SR(2km) (0)
Link reach for 62.5u fiber (m) = SR(2km) (0)
Nominal laser wavelength = 1310 nm.
DWDM wavelength fraction = 1310.0 nm.
Supported options = Tx disable
Loss of signal (standard implementation)
Supported enhanced options = Alarms for monitored parameters
Software Tx fault monitoring
Software Rx LOS monitoring
Diagnostic monitoring = Digital diagnostics supported
Diagnostics are externally calibrated
Rx power measured is "Average power"
Transceiver temperature operating range = -5 C to 85 C (extended)
Minimum operating temperature = -5 C
Maximum operating temperature = 85 C
High temperature alarm threshold = +103.000 C
High temperature warning threshold = +95.000 C
Low temperature warning threshold = -43.000 C
Low temperature alarm threshold = -43.000 C
High voltage alarm threshold = 4000.0 mVolts
High voltage warning threshold = 3600.0 mVolts
Low voltage warning threshold = 3000.0 mVolts
Low voltage alarm threshold = 0.0 mVolts
High laser bias current alarm threshold = 70.000 mAmps
High laser bias current warning threshold = 60.000 mAmps
Low laser bias current warning threshold = 0.000 mAmps
Low laser bias current alarm threshold = 0.000 mAmps
High transmit power alarm threshold = -5.0 dBm
High transmit power warning threshold = -7.0 dBm
Low transmit power warning threshold = -16.0 dBm
Low transmit power alarm threshold = -18.0 dBm
High receive power alarm threshold = 8.0 dBm
High receive power warning threshold = 8.0 dBm
Low receive power warning threshold = -40.0 dBm
Low receive power alarm threshold = -40.0 dBm
External Calibration: bias current slope = 1.000
External Calibration: bias current offset = 0