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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Symptoms: When using Point-to-Point Tunnelling Protocol (PPTP) with RADIUS Accounting,
there may be several "nas-error" and "lost-carrier" listed in accounting as the Acct-Terminate-Cause.
Conditions: The symptom is observed when using Cisco IOS Release 12.4T (Releases
12.4(15)T-12.4(22)T confirmed) and using PPTP with RADIUS Accounting in place.
Workaround: There is no workaround.
• CSCsy21885
Symptoms: After SPA reload, the CHOC12-DS0 SPA may be transmitting B1/B2/B3 errors out.
Remote side will detect SF BER, B1 TCA, B2 TCA, or B3 TCA alarms, or DS3 or DS1 alarms. The
CHOC12-DS0 SPA will have SONET line REI, Path REI or DS3/DS1 RAI alarm.
Conditions: When the SPA boots up during temperature transition, the SPA transmit side could
trigger B1/B2/B3 error detected by remote end. In a stable temperature environment, this problem
is hard to reproduce. After SPA is booted up, the problem can not be reproduced even if temperature
transits.
Workaround: A software workaround was released in Cisco IOS Release 12.2(33)SRD1 to reduce
the issue. But in some SPAs, the problem may still happen. When the problem happens, reload the
SPA.
• CSCsy24878
Symptoms: Bulk sync fails.
Conditions: Occurs when the relay destination command is configured on the device.
Workaround: There is no workaround.
• CSCsy26883
Symptoms: VPN routing/forwarding (VRF) traffic may experience packet loss after a supervisor
switchover.
Conditions: Occurs on a Cisco 7600 running Cisco IOS Release 12.2(33)SRB2 or Cisco IOS Release
12.2(33)SRC2.
Workaround: Apply an access-list with "permit ip any any" in one of the VRF interfaces, or force
another switchover.
• CSCsy29534
Symptoms: In rare conditions, when removing address-familly in router RIP configuration just after
importing large amount of routes in it, the router may crash on bus error.
Conditions: It was observed in the following context:
1) Supervisor 720 running Cisco IOS Release 12.2(18)SXF7. 2) 66K of routes were imported at that
moment from BGP into RIP. 3) The address-family is removed.
Workaround: Wait a few minutes between the moment you create and import the routes in the
address-family and the moment you remove it. Typically 3-5 minutes (depending on the number of
routes, more delay may be needed).
• CSCsy32000
Symptoms: Router crashes when BGP-IPv6 directly connected IBGP neighbors receives route with
Link-local Nexthop.
Conditions: BGP sends IPv6 link-local address in following cases:
1) Directly connected eBGP neighbors
2) BGP Ipv6 neighbors connected using Link-local address
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