[j-nsp] SONET APS warning?

Yu-lin Chang ylchang at ascc.net
Sat Sep 27 16:13:12 EDT 2003


Hi,

I use the APS on two sonet interfaces (so-1/1/1 and so-1/1/2) to protect 
the link between my routers and the SONET ADM. 

[diagram]

   +------(working-circuit)-------+               + -----(working-circuit)---------+
  R1                                  SONET ADM                                      R2
   +-------(protection-circuit)------+           +-------(protection-circuit)------+

Where the so-1/1/1 as the "working-circuit" and so-1/1/2 as the 
"protection-circuit".

The protection works fine except two behaviors that I cannot understand.
First, when I commit the config, following warning messages appear,
----------------------------------
noc at R1# commit 
[edit interfaces so-1/1/2 unit 0 family inet]
  'address xxx.xxx.xxx.xxx/32'
    warning: identical local address is found on different interfaces
[edit interfaces so-1/1/2 unit 1 family inet]
  'address ooo.ooo.ooo.ooo/32'
    warning: identical local address is found on different interfaces
commit complete
-----------------------------

Second, when I unplug the fiber on so-1/1/1 (the working-circuit), 
the protection-circuit does take over and the traffic been switched
to protection circuit. BUT, the ospf session between R1 and remote router
(the R2) always been reset. (a ospf up/down message is logged in the log file)

Are those two behaviors normal? ("identical local address warning" and "OSPF reset")

Thanks in advance.

Regards,
Yu-lin
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