ATM pvc wierd behaviour!

Leonardo Pena Davila · ‎03-25-2008

I have the following config:

interface ATM12/0/0.78 point-to-point

bandwidth 40000

ip address 10.10.10.1 255.255.255.252

cdp enable

pvc 0/78

abr 40000 40000

oam-pvc manage

encapsulation aal5snap

max-reserved-bandwidth 90

service-policy out xxxxxxx

For any reason (I would like to know why) the traffic stops flowing trough this pvc. On my monitoring tool I don't see any traffic. 1% of use

To solve the problem I must to delete interface ATM12/0/0.78 point-to-point and then configure it over again in both sites.

Then traffic starts flowing normally.

It doesnt happen very often but it occurs.

Does any one have a similar problem?

Thanks

Regards

paolo bevilacqua · ‎03-25-2008

That is a bug and bad one too. Can mean undetected crash in atm controller microcode.

What platform is that and what exact IOS ?

Leonardo Pena Davila · ‎03-25-2008

It is my plataform

Cisco Internetwork Operating System Software

IOS (tm) RSP Software (RSP-JSV-M), Version 12.3(18), RELEASE SOFTWARE (fc3)

Technical Support: http://www.cisco.com/techsupport

Compiled Wed 15-Mar-06 18:18 by dchih

Image text-base: 0x40010AFC, data-base: 0x42238000

ROM: System Bootstrap, Version 12.0(20011126:200409) [mssunil-RSP16_BENGAL_120S

251], DEVELOPMENT SOFTWARE

BOOTLDR: RSP Software (RSP-JSV-M), Version 12.3(18), RELEASE SOFTWARE (fc3)

er-plcgua1 uptime is 6 days, 6 hours, 19 minutes

System returned to ROM by reload at 10:45:51 CCS Wed Mar 19 2008

System restarted at 11:23:46 CCS Wed Mar 19 2008

System image file is "disk1:rsp-jsv-mz.123-18.bin"

Last reload reason: Unknown reason

cisco RSP16 (R7000A) processor with 262144K/8216K bytes of memory.

R7000 CPU at 400MHz, Implementation 39, Rev 3.3, 256KB L2, 2048KB L3 Cache

Last reset from power-on

G.703/E1 software, Version 1.0.

G.703/JT2 software, Version 1.0.

Channelized E1, Version 1.0.

X.25 software, Version 3.0.0.

Bridging software.

TN3270 Emulation software.

Primary Rate ISDN software, Version 1.1.

Chassis Interface.

2 VIP6-80 RM7000B controllers (4 Serial)(2 ATM).

3 VIP2 controllers (2 FastEthernet)(8 Ethernet)(12 Serial).

2 VIP4-80 RM7000 controllers (1 GigabitEthernet)(4 E1).

8 Ethernet/IEEE 802.3 interface(s)

2 FastEthernet/IEEE 802.3 interface(s)

1 Gigabit Ethernet/IEEE 802.3 interface(s)

20 Serial network interface(s)

2 ATM network interface(s)

2043K bytes of non-volatile configuration memory.

125952K bytes of ATA PCMCIA card at slot 1 (Sector size 512 bytes).

16384K bytes of Flash internal SIMM (Sector size 256K).

Slave in slot 6 is running Cisco Internetwork Operating System Software

IOS (tm) RSP Software (RSP-DW-M), Version 12.3(18), RELEASE SOFTWARE (fc3)

Technical Support: http://www.cisco.com/techsupport

Compiled Wed 15-Mar-06 18:22 by dchih

Slave: Loaded from system

Slave: cisco RSP16 (R7000A) processor with 262144K bytes of memory.

Configuration register is 0x2102

Regards

paolo bevilacqua · ‎03-25-2008

Actually it was "my" platform when I was a TME for cisco at the "edge bu" :)

Anyway, that is what I would do, upgrade to 12.3(26), chances are the bug has been fixed in the meanwhile. If that doesn't help, open a case with the tac and ask for immediate escalation to the "rsp" team, that is a bunch of guys that know well the PA-A3 and related bugs.