
Cisco IOSSoftware Configurationforthe Cisco12000Series One-PortChannelized OC-12/STM-4(DS1/E1)ISE Line
How to Configure Layer 1 Features
7
Cisco IOS Release 12.0(27)S1
Restrictions
The 1-Port CHOC-12 ISE line card can be installed only in the Cisco 12000 Series Router. The hardware
and software configuration procedures and tasks are similar to all other Cisco 12000 Series Router line
cards.
Each 1-Port CHOC-12 ISE line card requires 512 interface description blocks (IDBs) describing the DS1
channels (one per DS1 channel). We recommend that you install no more than two 1-Port CHOC-12 ISE
line cards on a Cisco 12000 Series Router chassis.
Configuring the SONET Controller
Summary Steps
1. enable
2. configure terminal
3. controller sonet slot/port
4. framing {sonet | sdh}
5. clock source {internal | line}
6. description string
7. report {all | event}
8. threshold type value
9. overhead s1s0 number
10. overhead c2 number
11. overhead j1 length [16 | 64]
12. overhead j1 message
Table 1 lists the SONET controller default values.
Table 1 Controller Parameters and Default Configuration Values
Parameter Configuration Command Default Value
AIS shut—send LAIS when shut down [no] ais-shut on
APS—modify APS parameters [no] aps ... off
Clock source—specify the clock source
for the SONET port
[no] clock source [internal | line] line
Loopback—put the SONET port in
loopback
[no] loopback [internal | line] no loopback
Overhead—configure SONET overhead
flags
[no] overhead [j0 | s1s0] j1=1; s1s0=00
Report—enable reporting of selected
alarms
[no] report [all | b1-tca | b2-tca |
b3-tca | lais | lom | lrdi | pais | plop |
prdi | puneq | sd-ber | sf-ber | slof |
slos]
sf-ber, slos, slof,
b1-tca, lais,
b2-tca,
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