gigabit ethernet compatibility

[pravash]

I have a cisco 6509 switch.with 16 gigabit ethernet RJ45
port.and my machine with 10 mb is not working on that.do i have to configure anything on switch port ? when i give command like "set speed port 2/24 auto/100 "it says function not supported.is it possible that 10m would not be supported on 1gbps port? please provide me with a solution to this
with thanks

 

[cull]

gig is gig. period. you need to come up with a 10/100 port somewhere.

 

[TimRegester]

Most Gigabit copper 1000BASE-TX ports should autonegotiate down to 10BASE-T. Some early implementations did not though.

 

[cull]

TimRegester - for REAL!? i didn't know gbics kbew anything other than gig. you're sure????

 

[TimRegester]

GBICs cannot as you state do this, I last used a 6509 before 1000BASE-T was a standard and there were no 1000BASE-T Cisco offerings. I assumed that a 16 port RJ45 1000BASE-T mod would not use GBICS as it would be damned expensive (but then Cisco have always been damned expensive).

I have seen individual 1000BASE-T GBICS from other vendors but these are optional GBICS for GBIC capable slots.

Most gigabit capable rj45 modules/blades are 10/100/1000 now, as the flexibility is what customers like this one need.

 

[tharder]

What is the P/N of the blade in the 6500.. Should be WS-?????

 

[bogart8]

I think there is a newer cisco 10/100/1000 blade that you can hard set no negotiate only 10/100 on a per port basis but no support for limiting to 10 base only from what I have seen. There is a config note from one of their pages with this information:

from Cisco page: Configuring Gigabit Ethernet Switching
"Caution Unlike autonegotiation with 10/100 Fast Ethernet, Gigabit Ethernet port negotiation does not negotiate port speed. You cannot disable port negotiation on Gigabit Ethernet ports using the set port speed command."

http://www.cisco.com/en/US/products...figuration_guide_chapter09186a008007f794.html

This page is for a 5000 series but seems to hold true for the newer models as well.