12-03-2024 01:57 AM
Hi
When I ping from PE1 to PE5 by "ping mpls ipv4 5.5.5.5/32" command, FEC target is
When I ping from PE1 to PE5 by "ping mpls ipv4 5.5.5.5/32 fec-type generic" command, FEC target is
I am bit confused about these 2 diff FEC target . Could someone explain the difference and relevance of the FEC target?
FEC type : IPv4 IGP-prefix segment ID is having protocol information too . What is the use of addressing protocol in the data plane verification.
Thanks in advance.
01-30-2025 08:33 PM
Hey @Ratheesh mv
The two screenshots that you shared are absolutely same. Please check.
FEC type : IPv4 IGP-prefix segment ID is having protocol information too . What is the use of addressing protocol in the data plane verification.
In the context of Segment Routing (SR) and MPLS (Multiprotocol Label Switching), the FEC (Forwarding Equivalence Class) type "IPv4 IGP-prefix segment ID" is used to represent a specific prefix in the IGP (Interior Gateway Protocol) routing domain. This FEC type is associated with a Segment ID (SID), which is used to identify a particular segment in the SR architecture.
When you mention "protocol information" in the context of the data plane verification, it likely refers to the protocol (e.g., OSPF, IS-IS) that is used to advertise and manage the prefix and its associated SID in the control plane. Here's how protocol information is useful in the data plane verification:
In summary, the protocol information associated with the "IPv4 IGP-prefix segment ID" FEC type is crucial for ensuring that the data plane correctly implements the forwarding behavior defined by the control plane. It aids in consistency checks, troubleshooting, protocol-specific optimizations, and overall network reliability.
Hope This Helps!!!
AshSe
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