Packet Captures

OSPF_Down-Bit.cap (8.9 KB)

LSA Update with down bit set. Router R5 56.0.0.5 PE is receiving an update from the MPLS VPN, which is advertised to CE 56.0.0.6 ospf routing table. In order for for the packet(LSA) not to be re-advertised back into the MPLS cloud through another PE(2) router, PE sets the Down-bit to 1. filter: ospf.v2.options.dn == 1

• Categories: Routing Protocols
• Protocols: CDP, HDLC, IP, OSPF, SLARP