Setup guide

5-20
Cisco 6400 Software Setup Guide
OL-1183-04
Chapter5 Redundancy and SONET APS Configuration
SONET APS for NLC Port Redundancy
Example—Disabling Redundancy and SONET APS
The following table shows example configurations before and after redundancy is turned off:
Verifying SONET APS
To verify the that SONET APS is enabled or to determine if a switchover has occurred, use the showaps
EXEC command or the show controller atm slot/subslot/port command.
In the following example, slot 7 contains the working (primary) card, and slot 8 contains the protection
(secondary) card:
Switch# show aps
ATM7/0/0: APS Lin NR Uni, Failure channel: Protection
Active Channel: CHANNEL7/0/0, Channel stat: Good
Port stat (w,p): (Good, Good)
ATM7/0/1: APS Lin NR Uni, Failure channel: Protection
Active Channel: CHANNEL7/0/1, Channel stat: Good
Port stat (w,p): (Good, Good)
In the following example, the OC-3 interface ATM 5/0/0 is not configured for redundancy:
Switch# show controller atm 5/0/0
Redundancy NOT Enabled on interface
IF Name: ATM5/0/0 Chip Base Address(es): A8B08000, 0 Port type: OC3 Port rate: 155
Mbps Port medium: SM Fiber
Port status:Good Signal Loopback:None Flags:8308
TX Led: Traffic Pattern RX Led: Traffic Pattern TX clock source: network-derived
Framing mode: sts-3c
Cell payload scrambling on
Sts-stream scrambling on
Setting SONET APS Priority Requests
APS priority requests are used to manually control the relationship between two APS ports from the
EXEC mode. The APS priority levels, lockout (1), force (2), and manual (5) are defined in the Telcordia
GR-253-CORE document.
Redundancy On After Redundancy Is Turned Off
redundancy
associate slot 1 2
!
interface ATM1/0/0
no ip address
no ip redirects
no ip proxy-arp
no atm auto-configuration
no atm ilmi-keepalive
atm uni version 4.0
aps mode linear 1+1 nonreverting unidirectional
aps signal-fail BER threshold 3
!
interface ATM1/0/0
no ip address
no ip redirects
no ip proxy-arp
no atm auto-configuration
no atm ilmi-keepalive
atm uni version 4.0
!
interface ATM2/0/0
no ip address
no ip redirects
no ip proxy-arp
no atm auto-configuration
no atm ilmi-keepalive
atm uni version 4.0
!