- Community Home
- >
- Networking
- >
- Legacy
- >
- Switches, Hubs, Modems
- >
- Re: 2524 switch, excessive crc/alignment errors
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
тАО04-15-2003 03:31 AM
тАО04-15-2003 03:31 AM
2524 switch, excessive crc/alignment errors
I have a network with 2 2524 switches, one in the main data centre where the servers connect and there are 5 hubs and 10 10mbit fibres to remote cabinets. There is a 100mbit module to another switch via fibre. I have been having trouble when copying large files from workstation to workstation or from server to workstation. The collision lights come on and the file transferr slows down. The switch logs "Excessive CRC/Alignment errors - see help" and it specifies the port that the workstaion is connected. I have replaced the cables and the network cards and the wall port. We have had a problem in the past on this setup where the entire network has gone down, collision lights on evety device, including remote cabinets and all PC's, the PC's cannot even be used as they run very slowly. Any suggestions would be of great help I am running firmware 4.08
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-15-2003 04:43 AM
тАО04-15-2003 04:43 AM
Re: 2524 switch, excessive crc/alignment errors
Besides, of course, check that cable length is less than 100m, does not pass close to perturbating electromagnetic sources (for the hub part).
Where does your workstation connect excatly, and is the problem related with only one workstation, or any ?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-15-2003 07:06 AM
тАО04-15-2003 07:06 AM
Re: 2524 switch, excessive crc/alignment errors
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-16-2003 02:24 AM
тАО04-16-2003 02:24 AM
Re: 2524 switch, excessive crc/alignment errors
I ahve checked for the 543 rule. The switch is central and all the servers are connected directly into it, as is the workstation that is generating the errors. The only bit I am unsure of is the 10 mbis fibre which is connected as follows.
HP 2524
|
3Com 10/100 hub
|
10mbis fibre transceiver in the hub
|
fibre cable to the 10 mbis fibre hub.
|
fibres to the remote switches which are connected with fibre transceivers.
Thanks
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-16-2003 04:31 AM
тАО04-16-2003 04:31 AM
Re: 2524 switch, excessive crc/alignment errors
I'd advise you first to update the switch FW, current rev is F.05.09.
Then make sure that the link settings are same on both ends of the link, so either autoneg on both ends (and on inter-switch links definitely use autoneg) or fixed speed/duplex. This applies also to server / workstation NICs.
There's no 10MB fibre xceiver for 25XX, so I presume you're using media converters. Not necessarily a very good idea, you have to be very careful when setting up the links with those and it doesn't necessarily work as expected.
If the CRC/Alignments come only from the workstation port, check the port status. If it's HDx, you most likely do have a duplex mismatch situation.
If you are using stacking kits and see the errors after FW update, call support.
HTH,
Arimo
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-16-2003 05:30 AM
тАО04-16-2003 05:30 AM
Re: 2524 switch, excessive crc/alignment errors
Good luck.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-16-2003 07:56 AM
тАО04-16-2003 07:56 AM
Re: 2524 switch, excessive crc/alignment errors
The 10 mbis fibres are connected via a transceiver in a 3com hub which then goes to a 10 mbis fibre hub and then to the remote locations.
I have had a look on the switch via telnet and I can see how to set the port to duplex etc but I want to check what status it is in first, I have not changed the settings knowingly so I would presume that they would be auto select.
Thanks
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-17-2003 05:01 AM
тАО04-17-2003 05:01 AM
Re: 2524 switch, excessive crc/alignment errors
Let's take it again: There is no 10MB fibre xceiver for 2524 switch. The existing xceivers are 100MB/s and 1000Mb/s. What's the product number of the fibre xceiver you have in the 2524?
I'm very surprised if you have got 10MB/s fibre working with this switch at all... AFAIK the only workaround is to connect TP to a media converter and thereon to the fibre.
Arimo
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО04-18-2003 01:48 AM
тАО04-18-2003 01:48 AM
Re: 2524 switch, excessive crc/alignment errors
Good luck.
J
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО12-03-2004 04:50 AM
тАО12-03-2004 04:50 AM