- Community Home
- >
- Networking
- >
- Switching and Routing
- >
- Web and Unmanaged
- >
- Re: HPE 1920-24G: 4-port Trunk Link w/ 2 ports Err...
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-27-2017 11:56 AM
тАО06-27-2017 11:56 AM
HPE 1920-24G: 4-port Trunk Link w/ 2 ports Errdisable - cabling configuration issue?
Good morning all,
We have a HPE-1920-24G switch with a trunk link (4 Dynamic LACP ports) connected to an HP 1820. All 4 links worked previously, however due to expansion some cabling work was done (4 inline couplers similar to the following: http://imgur.com/1hvNQIB) were used to extend the current trunk links to the newly placed HPE-1920 which feeds 3 Netgear GS108T access switches.
2 trunk links work without issue (which currently feed the 3 access switches) but the other 2 links are disabled by the switch with the following error:
The port's physical state (down) is improper for being attached.
Cable seemed to pass testing using a VDVMapMaster so I assumed the cabling job was adequate. I have tried setting both sides to dynamic/both to static but neither seems to resolve the issue.
Any suggesttions for the error message received?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-27-2017 04:26 PM
тАО06-27-2017 04:26 PM
Re: HPE 1920-24G: 4-port Trunk Link w/ 2 ports Errdisable - cabling configuration issue?
Is your testing testing all 8 wires?
Have you tried swapping the questionable cabling into known-good ports on both sides of a known-good link to see if the problem follows the cabling?
I wouldn't worry about what the switch is saying too much - if the only thing that's changed is the cabling, then the cabling is what needs looking at.
Have you tried nailing the ports on thwe 1920 to 100Mb instead of auto to see what happens to the dodgy links?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-27-2017 09:19 PM
тАО06-27-2017 09:19 PM
Re: HPE 1920-24G: 4-port Trunk Link w/ 2 ports Errdisable - cabling configuration issue?
Are all four physical links long the same lenght?
I'm not an HPE Employee
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-28-2017 04:48 PM
тАО06-28-2017 04:48 PM
Re: HPE 1920-24G: 4-port Trunk Link w/ 2 ports Errdisable - cabling configuration issue?
I assigned speed/duplex settings on both sides but LACP negotiation still failed.
To confirm I had settings set correctly I used a test switch (Netgear) to confirm LACP negotiation using new cables (1920 connected to NG SW using new cables with Dynamic LACP) and everything negotiated correctly; LAG was visible an in an up/up state.
Given 2 of the 4 links negotiate dynamic LACP with auto speed/duplex settings, I'm back to assuming the cables are faulty and will have to replace 2 of the 4 couplers. I do think it's unusual the cable seemed to pass the test - unless it was a fluke.
Out of curiousity, are inline couplers with punchdown blocks the norm? Or would stanard practice be to terminate both ends and use a female-to-female coupler?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-28-2017 04:56 PM
тАО06-28-2017 04:56 PM
Re: HPE 1920-24G: 4-port Trunk Link w/ 2 ports Errdisable - cabling configuration issue?
After setting up an additional test switch to confirm the software/configuration side was set correctly I tend to agree with you that it's a Layer 1 issue.
Will have to replace 2/4 couplers and see if it resolves the issue. All 4 cable runs are the same length from our server room to the warehouse HPE-1920. If I had to guess the total run length, I'd say all 4 CAT6 cables run no further than 250ft.
Also tried manually setting speed/duplex but LACP negotiation still failed.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-28-2017 05:56 PM
тАО06-28-2017 05:56 PM
Re: HPE 1920-24G: 4-port Trunk Link w/ 2 ports Errdisable - cabling configuration issue?
I *really* wouldn't be troubleshooting this by looking at LACP negotiation.
You need to establish each link one by one and just get each port up and passing traffic before you look at any link aggregation.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-29-2017 12:43 PM
тАО06-29-2017 12:43 PM
Re: HPE 1920-24G: 4-port Trunk Link w/ 2 ports Errdisable - cabling configuration issue?
IMHO No, at least when used to "extend" a data cable run...simply because, once you use them (no matter if the total cable run length is less than 90 meters threshold), you will lose any Cat.5E/Cat.6 cabling certification eventually obtained on that cabling...
I'm not an HPE Employee
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО07-02-2017 05:50 PM
тАО07-02-2017 05:50 PM
Re: HPE 1920-24G: 4-port Trunk Link w/ 2 ports Errdisable - cabling configuration issue?
I've used couplers before when I had no other choice. They don't always work - like any bit of physical wiring, there is always the potential for it to not provide full connectivity.