GNS3 LAB : LFA(Loop free alternate) and RLFA(Remote-LFA) on Cisco Routers.

Convergence time is a problem that humankind is trying to resolve since the day IGPs were discovered. Every vendor keeps on pushing less convergence time. With low “hold time” intervals we somehow manage to decrease the convergence time but this also has a limit, and the chances of raising bigger problems increase when we keep… Read More GNS3 LAB : LFA(Loop free alternate) and RLFA(Remote-LFA) on Cisco Routers.

GNS3 Cisco LAB : MPLS TE( Traffic-Engineering) FRR (fast-reroute) Node Protection.

Got a chance to see my other blogs on MPLS TE? I definitely recommend reading these below two because these will set the stage for this blog. MPLS TE basic config : GNS3 LAB Cisco : Quick Configuration MPLS TE (traffic engineering). MPLS TE fast-reroute link protection : GNS3 Cisco LAB : MPLS TE( Traffic-Engineering)… Read More GNS3 Cisco LAB : MPLS TE( Traffic-Engineering) FRR (fast-reroute) Node Protection.

GNS3 Cisco LAB : MPLS TE( Traffic-Engineering) FRR (fast-reroute) Link Protection.

Hello folks, In continuation of my previous blog on MPLS TE configuration, I have setup fast-reroute for MPLS TE tunnel so that if a designated primary link fails then the tunnel will take up the alternate path and the traffic loss will be avoided. Please check my previous blog for basic MPLS TE config in… Read More GNS3 Cisco LAB : MPLS TE( Traffic-Engineering) FRR (fast-reroute) Link Protection.

How MPLS Ping, MPLS Traceroute , MPLS Multipath trace can help in MPLS troubleshooting.

MPLS ping is a utility just like our old ipv4 ping in the hop to hop ip routing scenarios. The only difference is that it tells you that everything is fine in MPLS label switch path. In mpls label switch path you cannot rely on normal ping as it is possible that normal ping is working… Read More How MPLS Ping, MPLS Traceroute , MPLS Multipath trace can help in MPLS troubleshooting.