Hi, I am trying to configure the APS on the same router with my provider mux. I have Cisco 7204vxr with dual PA-POS-OC3SMI interface and using c7200-p-mz.124-25b.bin image. My provider has provided me two STM-1 for redundancy from their mux.
When primary link goes down it switches back to secondary without any issue, but when primary link comes back again and after 1 min when the link revert to primary it doesn't work ie the link doesn't switch back to primary and traffic stuck due to primary link continues flap. Jan 30 20:11:28.637 NP: APS POS3/0: aps_resend_current_k1k2 Jan 30 20:11:29.641 NP: %LINEPROTO-5-UPDOWN: Line protocol on Interface POS3/0, changed state to down Jan 30 20:11:39.638 NP: %LINEPROTO-5-UPDOWN: Line protocol on Interface POS3/0, changed state to up Jan 30 20:11:58.638 NP: APS POS3/0: aps_resend_current_k1k2 Jan 30 20:11:59.642 NP: %LINEPROTO-5-UPDOWN: Line protocol on Interface POS3/0, changed state to down Jan 30 20:12:09.638 NP: %LINEPROTO-5-UPDOWN: Line protocol on Interface POS3/0, changed state to up The primary link doesn't comes up until, the secondary interface was manually is "shut" and "no shut" or its fiber cable was unplugged and plugged. After some debugging and show aps output comparison the only thing I had noticed that APS gives indication in the log that link state administratively down along with line protocol down under normal condition. Jan 30 20:13:21.322 NP: %ENTITY_ALARM-6-INFO: ASSERT INFO PO4/0 Physical Port Administrative State Down But when then the link switch back to primary it doesn't shows the Administratively Down State log indication. It seems to me that APS is not putting the secondary link to "Complete Administrative Down State" and "Alarm Indicate Signal - Line LAIS " was not send back to provider MUX during the APS revert switch back process from secondary to primary. The reason why the primary link doesn't comes up until, the secondary interface was manually is "shut" and "no shut" or its fiber cable was unplugged and plugged, or am I missing something? this is my config: interface Loopback0 ip address 192.168.0.1 255.255.255.255 ! interface POS3/0 description PRIMARY STM-1 ip address 10.0.0.1 255.255.255.252 no ip redirects no ip unreachables no ip proxy-arp no ip mroute-cache load-interval 30 pos ais-shut aps working 1 no cdp enable end interface POS4/0 description STM-1 SECONDARY/PROTECTED STM-1 ip address 10.0.0.1 255.255.255.252 no ip redirects no ip unreachables no ip proxy-arp no ip mroute-cache load-interval 30 pos ais-shut aps revert 1 aps protect 1 192.168.0.1 no cdp enable end Regards, Samit _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
