N2048 dot1sBpduReceive(): Discarding the BPDU, cannot get buffer from buff pool

Question

I have been searching for a solution to this error. I have found other Dell switches have had this corrected in latest firmware releases. I am using the latest I could find for the N2048. Rev 6.1.2.4 still getting the error.

I am trying to come up with a good way to implement spanning tree. Spanning tree works fine until I introduce a switch loop on a dumb switch plugged into one of my ports on the N2048.

Anyone have a solution to this?

Thanks

Joe

JGiuliano · Answer

Small clip form the log

<187> Dec 2 05:09:20 172.24.252.10-1 DOT1S[119808692]: dot1s_txrx.c(268) 154850 %% dot1sBpduReceive(): Discarding the BPDU, cannot get buffer from buff pool

<187> Dec 2 05:09:20 172.24.252.10-1 DOT1S[119808692]: dot1s_txrx.c(268) 154849 %% dot1sBpduReceive(): Discarding the BPDU, cannot get buffer from buff pool

<187> Dec 2 05:09:20 172.24.252.10-1 DOT1S[119808692]: dot1s_txrx.c(268) 154848 %% dot1sBpduReceive(): Discarding the BPDU, cannot get buffer from buff pool

<187> Dec 2 05:09:20 172.24.252.10-1 DOT1S[119808692]: dot1s_txrx.c(268) 154847 %% dot1sBpduReceive(): Discarding the BPDU, cannot get buffer from buff pool

<187> Dec 2 05:09:20 172.24.252.10-1 DOT1S[119808692]: dot1s_txrx.c(268) 154846 %% dot1sBpduReceive(): Discarding the BPDU, cannot get buffer from buff pool

<187> Dec 2 05:09:20 172.24.252.10-1 DOT1S[119808692]: dot1s_txrx.c(268) 154845 %% dot1sBpduReceive(): Discarding the BPDU, cannot get buffer from buff pool

I have a root switch and 5 switches connected in a star topo

stand alone N2024

3 N2048's in a stack

stand alone 5548

the 2000 series are the switches I am having the issue with the 5548 is fine.

Spanning tree is working properly

with the following settings

this is for the N2000's

spanning tree

spanning tree mode rstp

int ran gi all

spanning tree auto-portfast

spanning tree guard root

The dumb switch is a Netgear FS108

I only get the error when I create the loop on the FS108

and the port shutsdown goes into D-Down state

The error scrolls for about 1 min before the prompt returns

I'm trying to avoid the port shutting down.

Cisco has errdisable recovery that these don't seem to have that would solve my problem.

My goal is to have the port blocked until the loop goes away then go back to a normal state.

Thanks'for any ideas

Joe

JGiuliano · Answer

I have tried those settings as well same issue Thanks for looking into this Joe .

JGiuliano · Answer

Any updates on your testing? I am really thinking a new firmware needs to be released

JGiuliano · Answer

Thank You

nenamfacgs · Answer

Hi,

I have the same problem,

7 Messages dropped due to lack of resources
Buffer Log:
<187> Apr 30 11:44:20 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14558000 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:20 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557999 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:18 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557989 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:18 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557988 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:16 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557987 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:16 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557986 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:14 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557985 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:14 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557984 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:12 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557983 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:12 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557982 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:10 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557981 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:10 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557980 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:08 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557970 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:08 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557969 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:06 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557968 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:06 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557967 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:04 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557966 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:04 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557965 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:02 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557964 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:02 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557963 %% dot1sBpduReceive(): Invalid Forward Delay
<187> Apr 30 11:44:00 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(269) 14557962 %% dot1sBpduReceive(): Discarding the BPDU, since it is an invalid BPDU type
<189> Apr 30 11:44:00 Switch Mendibil-1-1 DOT1S[dtlTask]: dot1s_txrx.c(1246) 14557961 %% dot1sBpduReceive(): Invalid Forward Delay

What I can do? please

Networking General

N2048 dot1sBpduReceive(): Discarding the BPDU, cannot get buffer from buff pool

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