MPLS VPN for an ISP (Full Routing required on CEs)
A good case study... Thinking about the Service Provider point of view...
How difficult would be to offer an MPLS VPN to interconnect various ISP sites. Considering that ISP wants to have Full Routing (internet routes) in the site routers and could have Internet links to this same SP (and others), what would be the best solution...
Re: MPLS VPN for an ISP (Full Routing required on CEs)
This can be done if you consider that you don't have to advertise all routes
on CE-PE (CE being ISP that will be interconnected and PE being carrier who
provide interconnection to that ISP).CE should advertise only internal routes to that ISP ( loopback , internal links etc).External routes (IE Internet routes , ISP Customer routes) will be exchanged between ISP IBGP neighbors . Search for Carrier Supporting Carrier feature on CCO .2547bis also explain this type of interconnection.
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%"
It's been a long standing ask for XR to support conditional route advertisements in BGP.
The expected option of using the
option in RPL currently can only be used at the default-inf...
On IOS-XR, Quality of Service has an extension to WRED (Weighted Random Early Detection) called Explicit Congestion Notification (ECN). ECN will mark packets instead of dropping them when the average queue length exceeds a specific threshold value. When c...