[c-nsp] C4510R and SFP interfaces

[David Prall]

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With the most recent code, all ports on the supervisor can now be used. But, you will be oversubscribing if you use both 10ge and all 4 ge ports.

12.2(25)SG
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat4000/relnotes/ol_5184.htm

Cisco Catalyst 4500 Series Supervisor Engine V-10GE Uplink Enhancement for simultaneous use of 10-Gigabit Ethernet and the Gigabit Ethernet SFP interfaces. (The Catalyst 4510R requires optional configuration. See the "Configuring Interfaces" chapter.) 
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Note On a Catalyst 4510R series switch, if you enable both the 10-Gigabit Ethernet and the Gigabit Ethernet SFP uplink ports, you must re-boot the switch. On the Catalyst 4503, 4506, and 4507R series switches, this capability is automatically enabled. 
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- --
David C Prall dcp at dcptech.com http://dcp.dcptech.com
  

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of 
> Asbjorn Hojmark - Lists
> Sent: Wednesday, November 23, 2005 5:03 PM
> To: security at cytanet.com.cy
> Cc: cisco-nsp at puck.nether.net
> Subject: RE: [c-nsp] C4510R and SFP interfaces
> 
> > We have a C4510R switches with Supervisor V-10GE. We have 4 
> > SFP interfaces which when we go to interface configuration,
> > they return a message below
> > 
> > Cisco(config-if)#interface GigabitEthernet1/3
> > 
> > % WARNING: Interface GigabitEthernet1/3 is usable/operational
> > only in gigabit 
> > % uplink configuration.
> 
> That is expected. You must either:
> 
> 1) Enable both 10G interfaces or
> 2) Enable the four GE interfaces or
> 3) Use just a 2-port GE line card in slot 10
> 
> This is controllable with the 'hw-module uplink' command.
> 
> 
> The reason is, the SupV-10GE is a 68 Gbps switching engine. In a
> 4500, each slot (normally) gets 6G, and with 8 slots, that's 48G.
> Add to that 20G on the supervisor and you have 68G and can't use
> the GE ports. (Yes, that also means you're limited in what ports
> you can use when running dual supervisors).
> 
> -A
> 
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