New Forum system requires email address which you used to apply for your account to replace your original username. Password stays the same.Please see this post for more details

Yealink Test Club has been officially launched. Please visit post below to get detail information. Come and join us!

We just had the YMCS online and we are also working on the features plan on the future versions, in this regard we are need to hear your voice about the YMCS.
Please visit :

Post Reply 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
T41P - STP Issue
Author Message
caleman Offline
Junior Member

Posts: 1
Joined: Apr 2015
Reputation: 0
Post: #1
T41P - STP Issue
Dear all,

We have deployed Spanning Tree protocol (802.1s MSTP standard) and Loop-back-detection (3COM proprietary) over our HP switches network infrastructure, in order to avoid loop events

We have recently acquired some Yealink T41P IP Phones that to our surprise (and unlike those Yealink T28P and T21P phones) they filter the forwarded frames for STP protocol (dest-mac 01:80:2C:00:00:00) and HP Loop-back-detection protocol (ethertype 0x9001, dest-mac FF:FF:FF:FF:FF:FF) between Internet and PC ports, leading these protocols functionality null when a user by mistake connects the PC Port to a free nearby network port.

The "Span to PC Port" option that permits traffic mirroring from Internet Port to PC Port, does not make any difference on filtering these type of frames.

Do happen to know of any way to avoid this situation ?

Thanks in advance

Attached File(s)
.bin  config.bin (Size: 175.52 KB / Downloads: 0)
.pcap  pcap.pcap (Size: 329.5 KB / Downloads: 1)
.tar  syslog .tar (Size: 318 KB / Downloads: 0)
08-07-2015 01:47 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 

Messages In This Thread
T41P - STP Issue - caleman - 08-07-2015 01:47 AM
RE: T41P - STP Issue - Yealink_Michael - 08-07-2015, 05:23 AM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  T46S multiple line - on hold issue sprintership 1 153 01-07-2020 05:19 PM
Last Post: MongoTEL_Support
  Caller-id after attended transfer not working properly on T19P/T41P ddyx 5 3,781 02-06-2018 08:01 AM
Last Post: Lucia_Yealink
  T23G and CP860 manual time issue DmitryTsyganov 1 1,585 09-27-2017 05:56 AM
Last Post: Lucia_Yealink
  T58V Outbound audio issue arainc 3 3,834 07-31-2017 02:24 AM
Last Post: Klaus_Yealink
  T41P will not register DavidAC 2 3,032 07-12-2017 11:44 AM
Last Post: Phonism
  T41P not registering DavidAC 1 2,110 06-23-2017 07:03 AM
Last Post: Kevin_Yealink
  DTMF ISSUE - CASE 40241 - URGENT david_cc 1 3,076 02-24-2017 02:22 PM
Last Post: Michael_Yealink
  Recovery Mode for T41P not working Tonyn 1 3,974 11-21-2016 07:13 AM
Last Post: Yealink_Michael
  T41P and OpenVPN Mad_k_57 1 2,961 09-26-2016 10:55 AM
Last Post: Travis_Yealink
  How to use the Intercom feature on a T41P Jderek01 1 6,455 09-19-2016 05:44 PM
Last Post: Kevin_Yealink

Forum Jump:

User(s) browsing this thread: 1 Guest(s)

Contact Us   Yealink   Return to Top   Return to Content   Lite (Archive) Mode   RSS Syndication