Problem with Cisco Switch Port Please Help
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Posted by on August 23, 2005, 12:43 pm
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We have a new device by Raritan it is a Dominion SX16. It has an ethernet connection. With a straight thru cable plugged into its ethernet port. When we plug the other side of the ethernet cable into a 6500 Cisco Switch we (do not) get a link light on the Cisco port and Raritan device. The port is just configured for 100/full and on VLAN 1 When we plug the other side of the ethernet cable into a 2924 or 2912 switch we (do) get a link light on both devices ports. The port is also just configured for 100/full and on VLAN 1 What is the problem, there should be no difference between an ethernet port on a 6500 switch and a port on a 2900 switch? We have tried to connect this device to multiple 6000 switches and we get the same result no connection and no link lights but everytime we connect to a 2900 switch port we get a connection. I have been doing networking for over 7 years and I have never seen this type of problem. Any help is appreciated???? | ||||||||||||||||||||||
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Posted by Walter Roberson on August 23, 2005, 8:26 pm
Please log in for more thread options :We have a new device by Raritan it is a Dominion SX16. :When we plug the other side of the ethernet cable into a 6500 Cisco :Switch we (do not) get a link light on the Cisco port and Raritan :device. The port is just configured for 100/full and on VLAN 1 :When we plug the other side of the ethernet cable into a 2924 or 2912 :switch we (do) get a link light on both devices ports. The port is :also just configured for 100/full and on VLAN 1 :What is the problem, there should be no difference between an ethernet :port on a 6500 switch and a port on a 2900 switch? If I recall past discussions correctly, the 6500 and 29xx series handle autonegotiation differently. What you wrote sounds like you have the 6500 and 29xx ports hard-coded for speed and duplex. If so, have you also hardcoded the Raritan port for speed and duplex? Conversely, if you have all the ports hard-coded, then try setting them all to autonegotiate: I have heard more than once of devices that -require- autonegotiation when talking to the 6500 series (some Sun boxes, some SGI boxes, some random switches.) -- The rule of thumb for speed is: 1. If it doesn't work then speed doesn't matter. -- Christian Bau | ||||||||||||||||||||||
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Posted by on August 23, 2005, 3:29 pm
Please log in for more thread options I would also make sure it is actually a straight thru cable. A crossover is used for switch to switch links, so if you're getting a link between switches, it may be a crossover. | ||||||||||||||||||||||
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Posted by Walter Roberson on August 23, 2005, 11:47 pm
Please log in for more thread options :I would also make sure it is actually a straight thru cable. A :crossover is used for switch to switch links, so if you're getting a :link between switches, it may be a crossover. Yeah, but either way the OP is plugging into a switch -- either a 29xx or the 6500. The OP specifically named the 6500 as a 'switch' not as a router. The 29xx series is too old to expect auto-mdix so I do not expect it to be just a case of having used the "wrong" cable up until now. -- Ceci, ce n'est pas une idée. | ||||||||||||||||||||||
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Posted by on August 24, 2005, 12:31 am
Please log in for more thread options mdargin@msn.com a écrit :  100/Full-Duplex - I believe that the default is auto-neg. | ||||||||||||||||||||||
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> ethernet connection. With a straight thru cable plugged into its
> ethernet port.