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Interoperability issue between NM-1T3/E3 and SPA-4XT3/E3

Hi, i have link problems since i replaced a 7200 with PA-E3s with a 7600 with SIP/200&SPA-4XT3/E3. The perfectly working link with 7200, never goes up/up with the SPA. Also the SPA does not recognize a hardware looping (cable). Tried 2 SPA modules. IOS is 12.2.33SRB.

State of the SPA E3:

diamond-core1# sh controllers serial 1/3/0

Serial1/3/0 - (SPA-4XT3/E3) is up

Framing is bypass, Clock Source is Line

Bandwidth limit is 34010, DSU mode 0

Data in current interval (10 seconds elapsed):

0 Line Code Violations, 0 P-bit Coding Violation

0 C-bit Coding Violation

0 P-bit Err Secs, 0 P-bit Sev Err Secs

0 Sev Err Framing Secs, 0 Unavailable Secs

10 Line Errored Secs

10 Severely Errored Line Secs

0 Far-End Errored Secs, 0 Far-End Severely Errored Secs

0 CP-bit Far-end Unavailable Secs

0 Near-end path failures, 0 Far-end path failures

0 Far-end code violations, 0 FERF Defect Secs

0 AIS Defect Secs, 0 LOS Defect Secs

config of the SPA E3:

ip address <....>

no ip redirects

load-interval 60

framing bypass

dsu bandwidth 34010

no cdp enable

NM-1T3/E3 config:

controller E3 2/0

framing bypass

interface Serial2/0

ip address <...>

dsu bandwidth 34010

no cdp enable

Thanks in advance.

Hall of Fame Super Gold

Re: Interoperability issue between NM-1T3/E3 and SPA-4XT3/E3


I suggest you contact the TAC for this one. It is configured correctly and should work.

Try to have the reprodice at least the down on cable loopback...

Good luck.