Uplink ports on SUP 720

[rehan_uet]

Sup 720 for Catalyst 6500 has following options for uplink,

"Two Gigabit Ethernet ports, one Small Form-Factor Pluggable (SFP), one selectable SFP or 10/100/100 RJ-45"

If I order it with two SFPs, can I utilize all these four uplink ports (two GE and two SFPs) on SUP 720 at the same time or these two SFPs are backup of the builtin GE ports.

[paddyxdoyle]

Hi,

My understanding is that you can use two ports only.

Port 1 supports SFP only and port 2 is interchangeable between SFP and RJ45. This is achieved by having a second SFP port and also a 10/100/1000 RJ45 port, you specify in the config whether to use the SFP GBIC or RJ45 interface.

So i believe the document is saying you get 2 Gigabit Ethernet ports which are 1 SFP and 1 selectable.

HTH

PJD

[paddyxdoyle]

Here some further explanation from Cisco

The Supervisor Engine 720 has two uplink ports. The port labeled PORT 1 requires that an SFP module be installed into it. The port operates at 1 Gbps. The port labeled PORT 2 has two connectors: either an SFP 1-Gbps port connector or a 10/100/1000BASE-T RJ-45 connector.

From here:

http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_guide_chapter09186a0080395a21.html

Rgds

PJD

[david.weston]

You can only use the two ports on the SUP720 as the second port is selectable as one or the other, you can't use both.