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Cisco Bug: CSCsz38751 - Modular IOS: BGP/LDP/HSRP flap after clear ip bgp * soft issued

Last Modified

Sep 21, 2015

Products (17)

  • Cisco IOS
  • Cisco Products
  • Cisco Catalyst 6500 Series Virtual Switching Supervisor Engine 720 with 10GE uplinks
  • Cisco 10720 Router
  • Cisco Catalyst 6500 Supervisor Engine 32 PISA
  • Cisco Catalyst 6500 Series Supervisor Engine 2
  • Cisco Catalyst 6000 Series Multilayer Switch Feature Card 3 (MSFC3)
  • Cisco 7600 Series Supervisor Engine 2 with Multilayer Switch Feature Card
  • Cisco Catalyst 6513 Switch
  • Cisco Catalyst 6500 Series Supervisor Engine 32 / MSFC2A
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Known Affected Releases


Description (partial)


Control plane instability  (BGP/LDP/HSRP and other protocol can flap) when "clear ip bgp * soft" issued


Problem happen only in Modular IOS and when  there is large routing table present on device.
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