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Cisco Bug: CSCvi08851 - redistribute static route to EIGRP / misbehaviour from RSP-4G to RSP440

Last Modified

May 10, 2020

Products (8)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco ASR 9922 Router
  • Cisco IOS XR Software
  • Cisco ASR 9010 Router
  • Cisco ASR 9904 Router
  • Cisco ASR 9006 Router
  • Cisco ASR 9001 Router
  • Cisco ASR 9912 Router

Known Affected Releases

5.1.3.BASE 5.3.4.BASE 6.1.2.BASE 6.2.2.BASE

Description (partial)

Customer is running 5.3.4
He is running eigrp between his ASR9K?s
Each router has two links, one link with metric delay 5 and the second with metric delay 10.
They have floating static route configured (AD 250) and its redistributed in eigrp

Problem description:
In RSP440 (After HW upgrade from RSP-4G) they had any issue as route start to flap between static and eigrp which cause outage till then lowered the AD of the static route below 170.

Below behavior observed :
while using RSP-4G the eigrp route received from neighbour  was ignored due to dup routerid, 
while using other route processor (RSP440/A99-RP2-SE) the route is accepted even if the router is the originator for it.

This was tested on several IOS-XR (5.1.3,5.3.4,6.1.2,6.2.2) and the same behaviour was observed.

Basically the issue observed in little-endian platforms like RSP440/A99-RP2-SE.

floating static route configured (AD 250) and its redistributed in eigrp with two or more links with peer device.

Effects only in little endian platform (RSP440/A99-RP2-SE)   .. issue applicable to from 04.03 onwards
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