• Author : Sulyab

 
 

Redistribution of leaked BGP routes into OSPF / OSPFv3

Description This document describes the feature that allows the redistribution of VRF-leaked BGP routes into OSPFv2 and OSPFv3. An optional route-map can be configured to redistribute a particular subset of the leaked BGP routes. Such a route-map can be used to perform matching based on prefix and tag. Platform compatibility This feature is supported on all platforms in multi-agent routing mode. Configuration The command ‘redistribute bgp [ include leaked ] [ route-map <route-map-name> ]’ is used to redistribute VRF-leaked BGP routes into OSPF. Note that configuring ‘redistribute bgp include leaked …’ will result in the redistribution of not only the...
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Support for setting DN bit in OSPF

Description This document describes the OSPFv2 feature that allows the setting of “Down” (DN) bit in type-5 and type-7 LSAs. The DN Bit is a loop prevention mechanism implemented when OSPF is used as CE – PE IGP protocol. Its usage in OSPF is explained by RFC4576. By default, OSPF honors the DN-bit in type-3, type-5 or type-7 LSAs in non-default VRFs. This means that LSAs with DN bit set will not be used in SPF calculation, and any routes carried by such LSAs will not be installed in the routing table. DN bit can be set in type-5 and...
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Support for OSPFv2 and OSPFv3 dn-bit-ignore

Description This document describes the OSPFv2 and OSPFv3 feature that allows enabling or disabling the inclusion of LSAs having “Down” (DN) bit set in SPF calculations. The DN Bit is a loop prevention mechanism implemented when OSPF is used as CE – PE IGP protocol. OSPFv2 only honors the DN-bit in type-3 LSAs in non-default VRFs. With EOS-4.25.0F, OSPFv2 will also honor the DN-bit in type-5 and type-7 LSAs in non-default VRFs. This means that the type-3/5/7 LSAs with DN-bit set will not be used in SPF calculation and any routes carried by such LSAs will not be installed in...
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Redistribution of DHCPv6 routes into OSPFv3

Description This document describes the feature that allows redistribution of DHCPv6 routes into OSPFv3. Platform compatibility This feature is supported on all platforms in multi-agent routing mode. Configuration EOS supports two configuration styles for OSPFv3. The command ‘redistribute dhcp’ can be used to redistribute DHCPv6 routes into OSPFv3. This command is available in ‘ipv6 router ospf ...’ configuration mode and the ‘address-family ipv6’ sub-mode of the ‘router ospfv3’ configuration mode. Both configuration styles are captured below. ‘router ospfv3’ configuration style The ‘redistribute dhcp’ command is available under the ‘address-family ipv6’ sub-mode of the ‘router ospfv3’ configuration mode: (config-router-ospfv3)#address-family ipv6 (config-router-ospfv3-af)#redistribute...
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BFD for Static Routes

Description BFD for static routes enables monitoring of directly connected next-hop reachability using a BFD session. This is achieved by associating the next-hop of the static route with a static BFD neighbor configuration. The static route is either installed or removed based on the status of the underlying BFD session. A static route whose next-hop is configured to be tracked by BFD is referred to as a ‘BFD tracked static route’ in the context of this document. This feature is supported for both IPv4 and IPv6 static routes. Platform Compatibility BFD for Static Routes feature is supported on all platforms....
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