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Cisco Bug: CSCub09099 - large mvpn configuration can take 90 minutes to load

Last Modified

Feb 11, 2018

Products (5)

  • Cisco IOS
  • Cisco ME 3600X-24TS-M Switch
  • Cisco ME 3600X-24CX-M Switch
  • Cisco ME 3600X-24FS-M Switch
  • Cisco ME 3800X-24FS-M Switch Router

Known Affected Releases


Description (partial)

Symptoms: When the BGP MDT address-family is configured with one or more VRFs
having "mdt default x.x.x.x" with 4000 VRFs, of which 400 VRFs have "mdt
default x.x.x.x" and with 8000 BGP neighbors in VRF (4K IPv4 & 4K IPv6), then
the router takes close to 30 minutes to apply the configuration.

Conditions: This symptom occurs if neighbors are configured under BGP VRF
address-family with the update-source command, that is, neighbor X.X.X.X
update-source <interface>.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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