Preview Tool

Cisco Bug: CSCtd56459 - EIGRP MIB some tables disobey lexicographic order if index > last entry

Last Modified

Mar 06, 2018

Products (1)

  • Cisco IOS

Known Affected Releases

12.2SXI 12.2YCA

Description (partial)

Symptom:Per RFC1905, a router should respond to an SNMP get-next (or get-bulk) request with the
first lexicographic successor to the requested OID. However, in the EIGRP MIB tables
cEigrpTopoTable, cEigrpPeerTable, and cEigrpInterfaceTable, when a request is made for an OID
indexed by EIGRP AS #, and the AS# is greater than any existing EIGRP AS in this VRF, the router
will return the first AS# in this VRF (lexicographically preceding this request) instead of carrying
over to the next vrf.

Conditions: Polling the EIGRP MIB, specifically cEigrpTraffStatsTable will show this issue.

More simply, if the router has, for example:
 cEigrpPeerCount.0.1.9 = 2 
 cEigrpPeerCount.0.1.26 = 0 
 cEigrpPeerCount.0.10.9 = 2 
 cEigrpPeerCount.0.10.26 = 0 
 cEigrpPeerCount.1.2.10 = 2
get-next                          returns
cEigrpPeerCount.0.1     cEigrpPeerCount.0.1.9  (correct)
cEigrpPeerCount.0.2     cEigrpPeerCount.0.10.9 (correct)
cEigrpPeerCount.0.10   cEigrpPeerCount.0.10.9 (correct)
cEigrpPeerCount.0.11   cEigrpPeerCount.0.1.9 (incorrect, should return cEigrpPeerCount.1.2.10 instead)
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.