1. Disable port negotiation on the port.
2. Enable port negotiation on the port to bring the links UP.
The
set port negotiation
command enables or disables the link negotiation protocol on the specified port.
Alternatively, upgrade the software version to Catalyst OS release which is not affected by the Cisco bug
ID
CSCeh46046
(
registered
customers only) .
The WS-X6724-SFP Module with DFC3A Resets in Cisco Catalyst 6500 Switches That Run
Cisco IOS Software
The WS-X6724-SFP module with Distributed Forwarding Card (DFC3A), that runs Cisco IOS® Software
Release 12.2(18)SXE1 reloads unexpectedly due to a memory allocation failure. Before the reload, the
available memory in the module is around 200k.
This problem is resolved in Cisco IOS Software Releases 12.2(18)SXE4, 12.2(18)SXF and later.
In order to resolve this problem, upgrade the Cisco IOS Software on the switch to the latest maintenance
release, which can be downloaded from the
Software Download
(
registered
customers only) page.
Speeds Supported by the 1000BASE-T(GLC-T) SFP Module on the Cisco Catalyst 3750 Series
Switch
The 1000BASE-T SFP can support 10/100/1000 speeds only on the Cisco Catalyst 2970, 3560, and 3750
Series Switches.
It is also possible to have the port auto-negotiate at a lower speed, or force a slower speed. Issue the
show interface capabilities
command in order to confirm whether a given GLC-T supports 10/100 speed
on a switch.
Output from the
show interface capabilities
command can confirm whether a GLC-T can be run at a
lower speed. The output also displays the capabilities of the specified interface, which includes the
configurable features and options.
For example, issue this command in order to hardcode the speed of the SFP port to 100Mbps:
Switch(config-if)#
speed 100
Use the 10-Gigabit Ethernet and Gigabit Ethernet SFP Ports of a SupII+10GE or SupV-10GE in
a Catalyst 4500 Series Switch
Catalyst 4500 Supervisor II Plus 10GE (WS-X4013+10GE) or Supervisor V 10GE (WS-X4516-10GE) has
four GE uplink interfaces and two 10 GE uplink interface per supervisor. The tables in this section illustrate
how the uplink provides redundancy in a 4507R or 4510R Chassis in various combinations of the two
supervisors in the supervisor slots.
In Cisco IOS Software Release 12.2(25)SG and later on a Catalyst 4507R Series Switch, 10GE and GE
uplinks are concurrently usable on the Supervisor Engine V-10GE (WS-X4516-10GE) and the Supervisor
Engine II+10GE (WS-4013+10GE). In Cisco IOS Software Releases earlier than 12.2(25)SG, you need to
issue the
hw-module uplink select
configuration command to select either the 10GE or GE uplinks.
In Cisco IOS Software Release 12.2(25)SG and later, when you use a Supervisor Engine V-10GE (WS-
X4516-10GE) on a Catalyst 4510R Series Switch, you can select to use both the 10GE and GE uplinks
concurrently, but only with a WS-X4302-GB in slot 10. If either the 10GE or GE uplinks are selected, then
any line card is allowed in slot 10. Issue the
hw-module uplink select
configuration command to select
the uplinks. In Cisco IOS Software Releases earlier than 12.2(25)SG, you cannot use the 10GE and GE
uplinks concurrently.
Note:
Redundancy requires that both supervisor engines in the chassis are of the same supervisor engine
model, and to use the same Cisco IOS software image.
If only 10GE ports are selected for uplink:
Uplink
Interface
Slot 1:
Supervisor II
Plus 10GE or
V 10 GE Slot
2: Empty
Slot 1:Empty
Slot2:
Supervisor II
Plus 10GE or
V 10 GE
Slot1:
Supervisor II
Plus 10GE or
V 10 GE Slot2:
Supervisor II
Plus 10GE or
V 10 GE
