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No DR for PIM interface?

KGrev
Level 4
Level 4

Hello,

I have an internal switch with a tunnel to an external router. While troubleshooting some multicast issues I noticed the tunnel has no DR when I "show ip pim interface".

Annotation 2023-11-01 120817.jpg

The distant router across the tunnel shows the same thing. Is this an issue. I am experiencing video stream issues on the distant end router but until now I was assuming it was fragmentation woes. Should I bee seeing a DR?

Thank you for any help.

interface Tunnel10
description LTE_10
bandwidth 10000
ip address 10.50.55.1 255.255.255.252
no ip redirects
no ip unreachables
no ip proxy-arp
ip mtu 1430
ip pim dr-priority 10
ip pim sparse-mode
ip tcp adjust-mss 1400
ip ospf message-digest-key 1 md5 7 xxxxxxxxx
ip ospf 10 area 0
tunnel source Loopback0
tunnel destination 10.50.9.20

 

1 Accepted Solution

Accepted Solutions

Torbjørn
Spotlight
Spotlight

In PIM designated router elections are used to determine which router should forward joins upstream on multi access segments. Since your GRE tunnel isn't a multiaccess segment there is no need for a PIM DR.

Happy to help! Please mark as helpful/solution if applicable.
Get in touch: https://torbjorn.dev

View solution in original post

3 Replies 3

Torbjørn
Spotlight
Spotlight

In PIM designated router elections are used to determine which router should forward joins upstream on multi access segments. Since your GRE tunnel isn't a multiaccess segment there is no need for a PIM DR.

Happy to help! Please mark as helpful/solution if applicable.
Get in touch: https://torbjorn.dev

KGrev
Level 4
Level 4

Thanks @Torbjørn 

No problem! @KGrev

Happy to help! Please mark as helpful/solution if applicable.
Get in touch: https://torbjorn.dev
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