RE: udld [7:73730]
I did some reading and you do not want to run any sw-sw fiber without it! Martijn -Oorspronkelijk bericht- Van: Lopez, Robert [mailto:[EMAIL PROTECTED] Verzonden: vrijdag 8 augustus 2003 16:00 Aan: [EMAIL PROTECTED] Onderwerp: udld [7:73730] Anyone out there make it a common practice to implement UDLD on Cat 6509 GigE uplinks? TIA, Robert LEGAL NOTICE Unless expressly stated otherwise, this message is confidential and may be privileged. It is intended for the addressee(s) only. Access to this E-mail by anyone else is unauthorized. If you are not an addressee, any disclosure or copying of the contents of this E-mail or any action taken (or not taken) in reliance on it is unauthorized and may be unlawful. If you are not an addressee, please inform the sender immediately. **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=73860t=73730 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
RE: udld [7:73730]
Yes, I find it to be a very good practice.. you should also activate the aggressive mode. Normal UDLD takes 90 seconds to bring down a UDLD link. Aggressive mode will bring it down in 15 seconds. Here is a good link on Best Practices for Catalyst Switches.. http://packetstormsecurity.nl/defcon10 MoreInfo BestPracticesforCatalyst4000,5000and6000SeriesSwit.pdf -Sal Lopez, Robert wrote: Anyone out there make it a common practice to implement UDLD on Cat 6509 GigE uplinks? TIA, Robert LEGAL NOTICE Unless expressly stated otherwise, this message is confidential and may be privileged. It is intended for the addressee(s) only. Access to this E-mail by anyone else is unauthorized. If you are not an addressee, any disclosure or copying of the contents of this E-mail or any action taken (or not taken) in reliance on it is unauthorized and may be unlawful. If you are not an addressee, please inform the sender immediately. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=73735t=73730 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
RE: udld [7:73730]
Absolutely! I have a client that uses UDLD Aggressive Mode on all switch-to-switch Gig links. We found out about this the hard way when we had a SUP in a 6509 that had faulty GIG interface; after several spanning-tree events and high-level conf. calls with Cisco they informed us about this feature (this was approx. 2 yrs. ago). Since then, we've been using it quite successfully. I have seen some weirdness when initially setting up trunks or gig-Etherchannel links (UDLD will sometimes cause the port to go 'err-disable'). Once you get the trunk/GEC link setup though it seems to work pretty well. HTH ~~ R. Benjamin Kessler Network Engineer CCIE #8762, CISSP, CCSE Kessler Consulting Email: [EMAIL PROTECTED] http://www.kesslerconsulting.com Phone: 260-625-3273 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lopez, Robert Sent: Friday, August 08, 2003 9:00 AM To: [EMAIL PROTECTED] Subject: udld [7:73730] Anyone out there make it a common practice to implement UDLD on Cat 6509 GigE uplinks? TIA, Robert LEGAL NOTICE Unless expressly stated otherwise, this message is confidential and may be privileged. It is intended for the addressee(s) only. Access to this E-mail by anyone else is unauthorized. If you are not an addressee, any disclosure or copying of the contents of this E-mail or any action taken (or not taken) in reliance on it is unauthorized and may be unlawful. If you are not an addressee, please inform the sender immediately. **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=73736t=73730 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
RE: udld [7:73730]
All the time. It is our standard to run udld in agressive mode. Jim -Original Message- From: Lopez, Robert [mailto:[EMAIL PROTECTED] Sent: Friday, August 08, 2003 10:00 AM To: [EMAIL PROTECTED] Subject: udld [7:73730] Anyone out there make it a common practice to implement UDLD on Cat 6509 GigE uplinks? TIA, Robert LEGAL NOTICE Unless expressly stated otherwise, this message is confidential and may be privileged. It is intended for the addressee(s) only. Access to this E-mail by anyone else is unauthorized. If you are not an addressee, any disclosure or copying of the contents of this E-mail or any action taken (or not taken) in reliance on it is unauthorized and may be unlawful. If you are not an addressee, please inform the sender immediately. **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=73750t=73730 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
