[c-nsp] Problem with 7200 and 12.2(33)SRE upgrade

[Jon Harald Bøvre]

Hi

You mention DSL, radius and PPP.

We had similar problems some years ago, PPPoA/l2tp tunnels did not come
up from all clients (7206 acted as LNS)
Our upgrade was from 12.2T something to 12.3T something, cannot remember
details.

After several tries of this upgrade on several routers we opened a TAC
case, and had a possible solution back within record breaking half an
hour.
Problem:
Early versions of IOS did not check all parameters coming back from ACS
Radius
We had an errored/missing configuration on our ACS Radius
Somewhere in 12.3 train this behaviour was changed to check all
parameters
Now the LNS refused tho make the connections.
After making the neccesary adjustment on the ACS we had no problems with
the upgrade.
There is a BUG ID for this, search
Later these routers have been upgraded to 12.2(24)T, and one to 15.0
something without problems

Dont know if this relates to your problems.

Also check ATM support in your IOS, as ATM has started to fade away from
newer IOS

Jon Harald Bøvre









On 4. jan. 2012 20:12 "Walter Keen" <walter.keen at rainierconnect.net>
wrote:

> Hi, I have a router I'm trying to move to a SR train, or more
> specifically 12.2(33)SRE from 12.3(15a) but I have a reports from DSL
> users of being unable to get to most places after that upgrade, which
> we
> reverted.
> 
> We've even setup a test router, and tried to duplicate it, with no
> luck
> so far. We do have one production router with that IOS (SRE) that
> works
> fine.
> 
> About the only difference I can find is hardware (CPU/midplane)
> revisions and bootloader versions.
> 
> I'm starting to wonder if anyone else on this list has encountered
> similar issues.
> All are NPE-G1, some with 512m ram, others with 1G ram
> 
> C7200-1 uses NAT(I know), PPP, radius, tacacs, ospf, bgp. C7200-2 and
> -3 use the same without NAT. We've tried replicating the config of -1
> onto -4 (the lab system) without being able to reproduce the issue.
> unfortunately these are all out of a support contract
> 
> C7200-1 (with the issue):
> current IOS 12.3(15a)
> ROM: 12.3(4r)T3
> SB-1 CPU at 700MHz, Implementation 1, Rev 0.2, 512KB L2 Cache
> 4 slot VXR midplane, Version 2.0
> Bootloader: 12.3(9), RELEASE SOFTWARE (fc2)
> Exhibited packet loss to ATM sub-interfaces (DSL customers)
> when moving to 12.2(33)SRE
> 
> 
> C7200-2 (another with the issue):
> current IOS 12.4(25b)
> ROM: 12.3(4r)T3
> SB-1 CPU at 700MHz, Implementation 1025, Rev 0.2, 512KB L2 Cache
> 4 slot VXR midplane, Version 2.6
> Bootloader: 12.4(12), RELEASE SOFTWARE (fc1)
> Exhibited packet loss to ATM sub-interfaces (DSL customers)
> when moving to 12.2(33)SRE
> 
> C7200-3 (working in production on SRE):
> current IOS 12.2(33)SRE
> ROM: 12.2(20030826:190624) [BLD-npeg1_rommon_r11 102], DEVELOPMENT
> SOFTWARE
> SB-1 CPU at 700MHz, Implementation 1025, Rev 0.2, 512KB L2 Cache
> 4 slot VXR midplane, Version 2.11
> Bootloader: 12.4(12), RELEASE SOFTWARE (fc1)
> 
> 
> C7200-4 (lab system, trying to replicate problem -- working on SRE):
> current IOS 12.2(33)SRE
> ROM: 12.3(4r)T1 fc1
> SB-1 CPU at 700MHz, Implementation 1025, Rev 0.2, 512KB L2 Cache
> 4 slot VXR midplane, Version 2.6
> Bootloader: none listed in 'sh ver' output
> 
>