About Mitrixsen

Mitrixsen · 08-11-2026

Hello, everyone.Here is my topology:It's a very simple MPLS L3 VPN scenario. R3 is advertising 3.3.3.3/32 to both routers via BGP. R1-XR and R2 are configured with as-override.I've configured R2 to advertise itself with a higher local preference, whi...

Mitrixsen · 08-05-2026

Hello, everyone.When configuring VRF Lite on IOS-XE, in order to apply the VRF to an interface that has IPv4 configured, you must initialize the IPv4 AF under the vrf definition configuration mode.R2(config)# interface GigabitEthernet1 R2(config-if)#...

Mitrixsen · 08-05-2026

Hello, everyone.I am reading the MPLS Layer 3 VPN Configuration guide for ASR 9000 which states:https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/26xx/l3vpn/configuration/guide/b-l3vpn-cg-asr9000-26xx.pdfYou must remove IPv4/IPv6 address...

Mitrixsen · 07-30-2026

Hello, everyoneThis is my topology with the following prefixes:My goal is the following:R3 should advertise only 3.3.3.3/32 and 33.33.33.33/32 to R2.R3 should advertise only 3.3.3.3/32 to R1-XRFor the first rule, I've defined this ACLR3(config)#do sh...

Mitrixsen · 07-30-2026

Hello, everyone.This is my topology:The timers for the TCP session are 20 for KA and 60 for the holdtime.Both of these routers share a password called CISCO8. I was told that the mpls ldp password rollover command specifies how long will the router w...

Mitrixsen · 08-11-2026

Hello,Thank you so much. So the route-map and route-policies are only to match prefixes that should have the SoO set? So it doesn't necessarily filter them?Is there any point in using them, then? Since the neighbor command will just tag everything.//...

Mitrixsen · 08-05-2026

Hello,The HW is Cisco 8011 Series Fixed 1RU Router 4x100G, 24x1/10/25G, 4xCu. The version running is Cisco IOS XR Software, Version 26.2.1 LNT.Thank youDavid

Mitrixsen · 07-25-2026

Hello!I suppose you're right. However, if the receiving router believed the different transport addresses to be different peers, shouldn't it build a TCP connection to each one, then?I've been thinking, each hello has the LSR's ID in it, so it knows ...

Mitrixsen · 07-21-2026

Hello!I don't think the statement in the book indicates that. Luc De Ghein states the following:If a prefix is reachable via a mix of labeled and unlabeled (IP) paths, Cisco IOS does not consider the unlabeled paths for load-balancing labeled packets...

Mitrixsen · 05-25-2026

Hello @Giuseppe Larosa,My goal was to send multicast traffic from AS 100 to AS 200 which succeeded even if the RPs peered directly and not with anyone in AS 300. PIM was enabled everywhere and once R4 sent a JOIN, the tree was built across AS 300. AS...

Member Since	‎01-11-2022 07:57 AM
Date Last Visited	‎08-11-2026 12:21 AM
Posts	245
Total Helpful Votes Received	41

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IOS-XR is not filtering routes based on identical BGP SoO.

VRF Address-Family on IOS-XR

IOS-XR - Changing the VRF on interface without removing the IP address

MPLS LDP Label Filtering - Multiple ACLs

MPLS LDP Password Rollover

Re: IOS-XR is not filtering routes based on identical BGP SoO.

Re: IOS-XR - Changing the VRF on interface without removing the IP add

Re: MPLS LDP Transport Address on Parallel Links

Re: Does MPLS perform ECMP over a mix of labelled and non-labeled path

Re: MSDP - Best Practices when it comes to design