Configuring TPoP and CSoP
Consider a deployment scenario with the TDM circuits from a base transceiver station is connected to an access router and must be transported to the base station controller through an aggregation router over an MPLS network through pseudowire.
During aggregation from transceiver to controller, the TDM circuits protect the data by using smart SFPs. For the E1 lines coming from transceiver, you must use TPoP SFPs and for the STM-1 lines coming from transceiver or controller, you must use CSoP SFPs.
You can monitor the alarms and performances on TPoP and CSoP smart SFPs.
Feature |
E1 Framed |
---|---|
SATOP |
Supported |
Clock configuration |
ACR, DCR, internal, Line |
BERT - System/Line |
Supported (Inverted-PRBS15) |
PM -E1 |
SELS, LES, UAS, LCV, PCV Far End counters are NOT SUPPORTED |
Alarms |
LOS, AIS, LOF, RDI |
Loopback - (local / line) |
Supported |
CEM counters |
Supported |
Feature |
OC3-STM1 |
---|---|
E1 SATOP |
STM-1 Channelized E1 |
Clock Configuration on Channelised-E1 |
ACR, DCR, internal, Line |
E1 Channel BERT - System/Line channel prbs |
Supported (Inverted-PRBS15) |
PM-STM1 RS/MS |
ES, SES, UAS Far End counters are NOT SUPPORTED |
Threshold and its alerts |
Supported |
Alarms STM1 |
LOS, LOF, RS-TIM, MS-AIS, MS-RAI |
Also consider a case, with Automatic Protection Switching (APS) protection being enabled on the controller, then the protect link coming from a single node or from multiple nodes with standby pseudowire is supported in the MPLS core.
Configuring Controller for PDH E1
To configure PDH E1 on a controller, ensure the Gigabit Ethernet port is up and enter the following commands:
enable
configure terminal
controller e1 0/0/0/7
vlan 100 ecid 1
end
You must mention a unique VLAN ID which is specific to that port and ecid number to identify E1.
Verifying Controller for PDH E1
Use the show controller e1 x/y/z command to verify the controller configuration on E1 for TPoP smart SFP.
Router# show controller e1 0/0/0/7
Controller State: Up
Transport Admin State: In Service
Framing: Unframed
Linecoding: High Density Bipolar Order 3
Loopback: None
Clock: Adaptive Clock Recovery (ACR)
Clock State: Locked
VLAN ID: 100
ecid:1
Configuring Controller for STM1
To configure STM1 on a controller, ensure the Gigabit Ethernet port is up and enter the following commands:
controller STM1 0/0/0/18
aug-mapping au4 au-4 1
mode tug3
tug-3 1
mode tug2
tug-2 1 payload vc12
vc12 1 mapping e1
/*Configure STM1-ch E1 */
Verifying Controller for STM1
Use the show controller stm1 x/y/z command to verify the controller configuration on STM1 for CSoP smart SFP.
Router# show controller STM1 0/0/0/18
Port STM 10/0/0/18
Status:
Primary State: Up
Configured Sec admin State: Normal
Inherited Sec admin State: Normal
Derived State: In Service
performance_monitoring_enabled
Loopback: None
Configuring Controller for STM1-ch E1
To configure each E1 on STM1 port, enter the following commands:
Config terminal
controller E1 0/0/0/18/1/1/1/1
vlan 200 ecid 1
You can configure the same VLAN ID for all the E1 under the same STM1 port or a different VLAN ID for each E1 under that STM1 port.
Verifying Controller for STM1-ch E1
Use the show controller e1 x/y/z command to verify the controller configuration on STM1.
Router# show controller e1 0/0/0/18/1/1/1/1
Controller State: Up
Transport Admin State: In Service
Framing: Unframed
Linecoding: None
Loopback: None
Clock: Internal
VLAN ID: 200
ecid:1