• Author : Pedro Coutinho

 
 

LSP ping/traceroute for BGP labeled unicast tunnels

Description The MPLS ping/traceroute utilities were extended in EOS version 4.26.0F to support connectivity checking of BGP labeled unicast (BGP LU) tunnels. Platform compatibility This feature is platform independent, and is also supported by vEOS-lab/cEOS-lab. CLI commands MPLS ping over BGP labeled unicast tunnels Command syntax and optional arguments for IPv4 tunnel endpoints: nlrtr1#ping mpls bgp labeled-unicast ip ? A.B.C.D Match this IP address A.B.C.D/E Destination prefix nlrtr1#ping mpls bgp labeled-unicast ip 10.7.7.7/32 ? bgp BGP next hop pad-reply Indicates that the reply should copy the Pad TLV repeat specify repeat count size Specify packet size in bytes source Specify...
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LDP Pseudowire

Description The LDP pseudowire feature provides support for emulating Ethernet connections over a Multiprotocol Label Switching (MPLS) network using the extension of the MPLS Label Distribution Protocol (LDP) specified in RFC4447. The patch panel configuration mode allows “patching” a local interface “connector” to an LDP pseudowire “connector” terminating on the local switch. The LDP pseudowire itself is defined under the pseudowires configuration mode, under the mpls ldp configuration mode.   This feature also supports locally patching traffic between two interfaces or subinterfaces and is again configured under the patch panel configuration mode.   Both these features support tagged (type 4)...
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MPLS static tunnel ECMP

Description EOS version 4.24.1F introduces support for specifying multiple vias to form ECMP in MPLS static tunnels. A new configuration mode for an MPLS static tunnel is introduced, where it is possible to enter one or multiple vias for said tunnel. Platform compatibility This is largely a platform-independent feature and therefore will work on all Arista platforms which meet the following requirements: Running a control plane in multi-agent mode. Using a data plane which supports MPLS forwarding. See section Limitations of MPLS encapsulation TOI: https://eos.arista.com/eos-4-15-0f/mpls-encapsulation/ Configuration For CLI configuration details and legacy (“single line”) MPLS static tunnel configuration, please refer...
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GTSM for BGP

Description This feature involves the use of packet’s Time to Live (TTL) (IPv4) or Hop Limit (IPv6) attributes to protect BGP peering sessions (both iBgp and eBgp) from an attacker on the network segment causing denial of service using forged IP packets by spoofing the BGP peer’s IP address. The solution is described by the RFC 3682 (Generalized TTL Security Mechanism). The user can configure a minimum TTL for incoming IP packets received from the BGP peer. BGP session will only get established if the TTL value in the received IP packet header is greater than or equal to the...
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GTSM for BGP

Description This feature involves the use of packet’s Time to Live (TTL) (IPv4) or Hop Limit (IPv6) attributes to protect BGP peering sessions (both iBgp and eBgp) from an attacker on the network segment causing denial of service using forged IP packets by spoofing the BGP peer’s IP address. The solution is described by the RFC 3682 (Generalized TTL Security Mechanism). The user can configure a minimum TTL for incoming IP packets received from the BGP peer. BGP session will only get established if the TTL value in the received IP packet header is greater than or equal to the...
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