I am trying to see if MoFRR can provide the necessary level or redundancy for our network. Due to nature of the multicast service, we are looking into flow based MoFRR that is only available in ASR9K. We are running some initial tests but I am a little puzzled by the behaviour of flow based MoFRR especially when a multicast stream begins transmitting traffic.
To my understanding MoFRR chooses two RPF neighbours (primary / secondary RPF). For each multicast group it accepts the stream received through primary RPF neighbour and discards the one from the secondary. But as soon as ASR9K detects that a particular stream is no longer received through primary PRF path (the ASR9K seems to monitor the flow for the primary RPF path) it switches to secondary path. After that, the ASR will start monitoring the flow on secondary path and it will revert back to the primary in case of an error.
The problem is when the stream starts, then if due to a problem (e.g. in an interface of the source stops working) traffic is successfully received only through the secondary path, then ASR will discard it, thus offering no redundancy (it seems as if ASR9K only monitors flows received along primary path and does not take into account if the stream is received through the secondary).
Is there a way using flow based MoFRR in ASR9K to make sure that the ASR will forward traffic that it initially received only through secondary RPF interface?
This guide will explain how to check where a particular directory resides within the filesystem in terms of physical disk, logical volume, volume group, etc by taking a look at where the install repository actually resides on an NCS5500.
According to the RFC 7432:
Extended Community enables split-horizon procedures for multihomed sites. The ESI Label field represents an ES by the advertising PE, and it is used in split-horizon filtering by other PEs that are connected to th...
In scaled EVPN deployments it can be wise to name ESI that way to represent the site/physical port/etc it is attached to. Thus on some remote location you can easily verify where particular route/MAC is coming from. Similar to phone numbers, where...
Want to enable Feature EPFT with “routing-protocols-enable”. However ,it is throwing an error and ask to configure the following command: “non-subscriber-interfaces mac” which once enabled drops the traffic without any penalty.
XR-vm - CLI's
look for any process crash, review time stamp[if it is too old, then no immediate action needed]
verify if standby state is Ready and NSR-Ready
show proc cpu | exclude " 0%"