Comments on: Giant Frame Errors http://itknowledgeexchange.techtarget.com/itanswers/giant-frame-errors/ Fri, 25 May 2012 20:04:02 +0000 http://wordpress.org/?v=2.6.2 By: edwardzeng http://itknowledgeexchange.techtarget.com/itanswers/giant-frame-errors/#comment-38990 edwardzeng Sun, 30 Apr 2006 05:20:59 +0000 #comment-38990 The Catalyst 6000 series and 7600 Optical Services Router (OSR) platform can support jumbo frame sizes as of release 6.1(1) of CatOS, and 12.1(1)E for Native IOS. However, this is dependent on the type of line cards that you use. There are generally no restrictions to enable the jumbo frame size feature. You can use this feature with trunking/non-trunking and channeling/non-channeling. The default MTU size is 9216 bytes after you enable jumbo frame support on the individual port. However, an Application Specific Integrated Circuit (ASIC) limitation requires that you limit the MTU size to 8092 bytes on these 10/100-based line cards http://www.cisco.com/en/US/products/hw/switches/ps700/products_configuration_example09186a008010edab.shtml The Catalyst 6000 series and 7600 Optical Services Router (OSR) platform can support jumbo frame sizes as of release 6.1(1) of CatOS, and 12.1(1)E for Native IOS. However, this is dependent on the type of line cards that you use. There are generally no restrictions to enable the jumbo frame size feature. You can use this feature with trunking/non-trunking and channeling/non-channeling.

The default MTU size is 9216 bytes after you enable jumbo frame support on the individual port. However, an Application Specific Integrated Circuit (ASIC) limitation requires that you limit the MTU size to 8092 bytes on these 10/100-based line cards

<a href="http://www.cisco.com/en/US/products/hw/switches/ps700/products_configuration_example09186a008010edab.shtml" rel="nofollow">http://www.cisco.com/en/US/products/hw/switches/ps700/products_configuration_example09186a008010edab.shtml</a>

]]> By: astronomer http://itknowledgeexchange.techtarget.com/itanswers/giant-frame-errors/#comment-38991 astronomer Thu, 27 Apr 2006 12:27:03 +0000 #comment-38991 I only know one person who has done sniffing on serial links. I sent David a question about this. I will have to wait to see if there is a response. In the meantime, I recommend you look at the configuration of the system sending the giant frames. rt I only know one person who has done sniffing on serial links. I sent David a question about this. I will have to wait to see if there is a response.
In the meantime, I recommend you look at the configuration of the system sending the giant frames.
rt

]]> By: nazman http://itknowledgeexchange.techtarget.com/itanswers/giant-frame-errors/#comment-38992 nazman Thu, 27 Apr 2006 11:38:58 +0000 #comment-38992 We tried using Observer to sniff the traffic but I don't think it allowed us to see the Giant Frames as they were dropped or the nic on the laptop did not support it with Observer sniffer. May try ethereal but can't see it being any different. We tried using Observer to sniff the traffic but I don’t think it allowed us to see the Giant Frames as they were dropped or the nic on the laptop did not support it with Observer sniffer. May try ethereal but can’t see it being any different.

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