11-03-2011 06:13 PM - edited 03-01-2019 02:30 PM
Hi..
We have a 12006 running the version 12.0(32)SY13.. They are running Automatic Protection Switching (APS) and Now we are trying to add a fault managment sofware , but we found a problem with the information that the 12 k router have in order to identify the interfaces that belong to sonet via snmp
I´m walking trough the "CISCO-APS-MIB" and I found the object cApsStatusTable, where it supose that show me the relation between the APS groups Sonets ant the en d interfaces, but doesnt show anything..
Do anyone has work with snmp in the APS over 12k routers, and have any idea of how map via snmp of the SONET cards and the end interfaces?
Here is the configuration
controller SONET 1/2/0
au-4 1 tug-3 1
tug-2 3 e1 1 channel-group 1 timeslots 1-31
tug-2 3 e1 1 framing no-crc4
interface Serial1/2/0.1/1/3/1:1 --->end interfaces
ip address x.x.x.x 255.255.255.252
no ip redirects
no ip directed-broadcast
load-interval 30
no cdp enable
I also tried with the next object below and it doesnt show me nothing
apsMapTable
contains entries for each SONET LTE
interface available on the system. The table serves two
purposes. It can be used to locate SONET LTE
interfaces that are not currently included in
APS groups. It also provides a mapping from InterfaceIndex
Regr¿ards!!
11-30-2011 12:58 PM
I found this way, in order to identify if the group that belong to APS group
I walked in the “CISCO-APS-MIB” and I found this :
Walk to
.1.3.6.1.4.1.9.10.71.1.4.1
.1.3.6.1.4.1.9.10.71.1.4.1.4.1.50.0 = 884
.1.3.6.1.4.1.9.10.71.1.4.1.4.1.50.1 = 879
SONET 4/1/0---->ifindex 884
SONET 3/1/0-----> ifindex 879
With this object, I found that the interfaces ifdex indicated 884 and 879, belongs to the same APS´s group “50”
And another point that I noticed, is that the last octet, from the object indicate if the interface index is protect or working,as you see below:
.1.3.6.1.4.1.9.10.71.1.4.1.4.1.50.0 = 884----à “0” indicate that the interface index is protect
.1.3.6.1.4.1.9.10.71.1.4.1.4.1.50.1 = 879-à “1” indicate that the interface index is working.
And now with “cAppStatusSwitchedChannel”, I found that the in the group “50” the active interface is protect, because the value 1 indicate that the interface protect is working , and if the value is “cero indicate that the working interface is the active, as you see below:
.1.3.6.1.4.1.9.10.71.1.2.1.8.50 = 1---> distinto a cero, indica que esta trabajando el modo protegido
Here is an ouput from the aps group
PE-MTY-4#sh aps group 2 --------->884
SONET 4/1/0 APS Group 2: protect channel 0 (Active) (HA)
Working channel 1 at 192.168.54.58 (Disabled) (HA)
bidirectional, non-revertive
PGP timers (extended for HA): hello time=1; hold time=10
hello fail revert time=120
SDH framing; SDH MSP signalling by default
Received K1K2: 0x21 0x10
Reverse Request (working); Bridging working
Transmitted K1K2: 0x11 0x10
Do Not Revert (working); Bridging working
Remote APS configuration: working
SF-BER Threshold=3; SD-BER Threshold=6
SONET 3/1/0 APS Group 2: working channel 1 (Inactive) (HA) ---->879
Protect at 192.168.54.58 (bidirectional)
PGP timers (from protect): hello time=1; hold time=10
SDH framing
Remote APS configuration: protect
SF-BER Threshold=3; SD-BER Threshold=6
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