pim sparse-dense and dynamips
Anyone had these messages before when using PIM sparse-dense on dynamips? IOS is c7200-a3jk9s-mz.124-25e.bin. I don't seem to be getting the same thing when using real gear which makes me suspect dynamips. it just bounces over and over and gives the same console message.
*Apr 28 14:29:05.914: %PIM-5-NBRCHG: neighbor 172.16.45.1 DOWN on interface GigabitEthernet2/0 non DR
*Apr 28 14:29:05.930: %PIM-5-NBRCHG: neighbor 172.16.45.1 UP on interface GigabitEthernet2/0
*Apr 28 14:29:05.914: %PIM-5-NBRCHG: neighbor 172.16.45.1 DOWN on interface GigabitEthernet2/0 non DR
*Apr 28 14:29:05.930: %PIM-5-NBRCHG: neighbor 172.16.45.1 UP on interface GigabitEthernet2/0
Cisco was my first networking love, but my "other" router is a Mikrotik...
Comments
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chrisone
Senior Member Member Posts: 2,199 ■■■■■■■■■□
Although I have not really messed with GNS3 Multicast Labs, I can assure you that, GNS3 does have bugs in it and not every aspect of IOS is flawless. So it is very possible this is a bug.Certs: CISSP, OSCP, CRTP, eCTHPv2, eCPPT, eCIR, LFCS, CEH, AZ-900, VHL:Advanced+, Retired Cisco CCNP/SP/DP
2021 Goals
Courses: eLearnSecurity - PTXv2 (complete), SANS 699: Purple Team Tactics (completed), PentesterLabs Pro (ongoing)
Certs: eCPTXv2, CRTE, AZ-500, SC-200 (March 5th) -
Chris_
Member Posts: 326
Haven't deen it in GNS3 but I used to work with multicast a lot and always saw this error if an interface flapped for any reason.Going all out for Voice. Don't worry Data; I'll never forget you
:study: CVoice [X] CIPT 1 [ ] CIPT 2 [ ] CAPPS [ ] TVOICE [ ] -
vinbuck
Member Posts: 785
It looks like the underlying problem is dropped packets between Gigabit Ethernet interfaces. It's dropping about 5% of the packets sent. I may try a different IOS image or router type and see what happensCisco was my first networking love, but my "other" router is a Mikrotik... -
chrisone
Senior Member Member Posts: 2,199 ■■■■■■■■■□
hmm interesting, what is your CPU / memory utilization? check the idle PC on your devices.Certs: CISSP, OSCP, CRTP, eCTHPv2, eCPPT, eCIR, LFCS, CEH, AZ-900, VHL:Advanced+, Retired Cisco CCNP/SP/DP
2021 Goals
Courses: eLearnSecurity - PTXv2 (complete), SANS 699: Purple Team Tactics (completed), PentesterLabs Pro (ongoing)
Certs: eCPTXv2, CRTE, AZ-500, SC-200 (March 5th) -
vinbuck
Member Posts: 785
hmm interesting, what is your CPU / memory utilization? check the idle PC on your devices.
I've got a pretty good idle cpu...sits around 3-4 percent when i'm not doing anything and goes up to about 50-60 percent when i'm trying to pass traffic. This is with 7 7200s. I've got 2GB ram on Windows 7Cisco was my first networking love, but my "other" router is a Mikrotik...