OSPF area selection
Hi,I've inherited a solution that has been working for some time but now needs some changes made. i'm haveing an infuriating issue with OSPF which i think i know the solution but not willing to...
View ArticleOSPF adjacency stuck in Exstart state
I 2 have router connected point to point and configured ospf as follows.root@R1# show protocols ospf traceoptions { file ospf-debug size 1g files 5; flag all; } area 0.0.0.0 { interface ge-0/0/0.0;...
View ArticleRe: OSPF adjacency stuck in Exstart state
Two things generally cause this. Mismatched MTU and firewall filter on loopback interface. I see no mtu mismathced in debug. Check it anyways. Is there a firewall filter on the lo0 interface of R2?...
View ArticleRe: OSPF adjacency stuck in Exstart state
MTU is same on both side. No firewall filter configured on lo0I added the detail knob in traceoption configFollowing is the ospf debug on R1Jul 26 13:59:27.899944 OSPF sent DbD 172.27.0.1 ->...
View ArticleRe: OSPF adjacency stuck in Exstart state
No errors seen. R1 reports absorbed, meaning no problems now, we all copasetic. Weird! Enable traceoptions on R2. Same configuration options and post that result.
View ArticleRe: OSPF adjacency stuck in Exstart state
Logs on R2 :Jul 26 14:24:24.844587 OSPF sent DbD 172.27.0.2 -> 172.27.0.1 (ge-0/0/0.0 IFL 330 area 0.0.0.0) Jul 26 14:24:24.844614 Version 2, length 32, ID 172.27.255.2, area 0.0.0.0 Jul 26...
View ArticleRe: OSPF adjacency stuck in Exstart state
Even more weird. No errors and the logs say the adjacency is successful. Is is possible to to restart R2? Can you deactivate ospf on R2, commit the config, wait a few minutes, then activate ospf, but...
View ArticleRe: OSPF adjacency stuck in Exstart state
i'm running this topology on Junosphere for certification purpose and seen this weird issue. I tried deactivate (wait few minute) and activate ospf on R2 but didn't help. I tried on same on R1 as well...
View ArticleRe: OSPF adjacency stuck in Exstart state
Okay. It is still weird, primarily because no erros are logged and the "absorbed" means established full or 2-way if between non-BDR/DRF ospf routers. Well delete the ospf config on both devices,...
View ArticleRe: troubleshoot PFE Invalide interface
We did not pursue the details because they were invalid and dropped, so I'm not sure. But I would start by checking the messages log or syslog to see if anything is recorded when the counters are...
View ArticleRe: OSPF adjacency stuck in Exstart state
I was under the impression that multiple interfaces in the same subnet causes packet loss and other oddities. https://kb.juniper.net/InfoCenter/index?page=content&id=KB24928&actp=METADATA
View ArticleRe: OSPF adjacency stuck in Exstart state
HI, What if you add interface-type p2p to the ospf configuration.
View ArticleRe: question in L2VPN
I'm pretty sure that all l2vpn types use same forwarding/data plane encapsulation which is "Martini" RFC4448 encapsulation
View ArticleRe: OSPF adjacency stuck in Exstart state
Changing interface type to p2p worked.. root@R1# run show ospf neighbor Address Interface State ID Pri Dead 172.27.0.9 ae0.0 Full 172.27.255.4 128 39 172.27.0.2 ge-0/0/0.0 Full 172.27.255.2 128 34...
View ArticleRe: OSPF expectation help
This looks similar to the issue i am trying to understand, why a vlan is advertised over area x instead of over area y. i've reread the posts here but i'm still not getting it.Alex could you explain a...
View ArticleMVRP
hello, i have a juniper switch QFX3500S with junos os 12.2X.50-D30.4 who support MVRP for dynamic vlan configuration but i can't set MVRP to this switch anyone have an issue ? tanks
View ArticleRe: OSPF expectation help
Hello, Chris2 wrote:is it the case that if Gavin had run show ospf database extensive he would have seen his vlan 300 subnet in area 0 too? Correct. Chris2 wrote: in my case we want tagged routes to...
View ArticleRe: OSPF expectation help
Thanks Alex, was kind of suspectig we where running up against limitations in OSPF, was hoping we could just get this doing what we want but may need to seriosuly think about moving onto a more...
View ArticleRe: OSPF expectation help
Hello,It looks like You are missing basics here and I thoroughly recommend this book to understand OSPF:https://www.amazon.com/OSPF-Choosing-Large-Scale-Networks/dp/0321168798Chris2 wrote: My big...
View ArticleRe: OSPF area selection
If you look at the different LSA headers, you'll see that route tags are only for LSA Type 5 (External) and LSA Type 7 (NSSA). Since DC1-VC is the ABR for area 300 and area 0, those VLAN interfaces...
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