Deploying 10-Gigabit Ethernet Or Gigabit Ethernet Ports - Cisco Catalyst 4500 Series Configuration Manual

Chapter 7 Configuring Interfaces

Deploying 10-Gigabit Ethernet or Gigabit Ethernet Ports

To increase the flexibility of X2 ports, the Catalyst 4500 series switch as well as Catalyst 4900M and
Catalyst 4948E support TwinGig Convertor modules. When you plug a TwinGig Convertor module into
an X2 hole, it converts a single X2 hole (capable of holding one pluggable X2 optic) into two SFP holes
(capable of holding two pluggable SFP optics). This enables you to have 10-Gigabit ports and 1-Gigabit
ports on the same line card. It also allows you to use Gigabit ports, and then switch to a 10-Gigabit port,
when needed.
This section includes these topics:
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•
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Port Numbering TwinGig Convertors
When a TwinGig Convertor is enabled or disabled, the number and type of ports on the line card change
dynamically. The terminology must reflect this behavior. In Cisco IOS, 10-Gigabit ports are named
10-Gigabit and 1-Gigabit ports are named Gigabit. Starting with Cisco IOS Release 12.2(40)SG, to
avoid having two ports named 10-Gigabit1/1 and Gigabit1/1, the 10-Gigabit and 1-Gigabit port numbers
are independent. For example, for a WS-X4606-10GE-E module with six X2 holes, the X2 ports are
named 10-Gigabit slot-num/<1-6>, and the SFP ports are named Gigabit slot-num/<7-18>.
Figure 7-3
Status
In Cisco IOS, ports 1 through 18 always exist. This means that you can apply configurations on them
and they display in the CLI output. However, only the X2 or the SFP ports can be active at any particular
time. For example, if an X2 is plugged into the second hole, the X2 port 2 is active and SFP ports 9 and
10 are inactive. If a TwinGig Convertor is plugged into the second hole, the X2 port 2 is inactive, and
the SFP ports 9 and 10 are active. The inactive ports are treated analogously to the inactive ports on
Supervisor Engines IV and V-10GE, where at no time are all of the uplinks connected to the switching
ASICs.
Note When using both TwinGig and X2 transceivers on the WS-X4606-X2-E module, place ports 1-3 in one
group and ports 4-6 in another. (The mode selected with the show hw-module module port-group
command determines the behavior. See
group does not work. For example, you cannot have an X2 in port 1 and a TwinGig in port 2 and expect
both of them to function.
OL-25340-01
Port Numbering TwinGig Convertors, page 7-13
Limitations on Using a TwinGig Convertor, page 7-14
Selecting X2/TwinGig Convertor Mode, page 7-14
Faceplate for WS-X4606-10GE
X2 1 2
SFP 7 8 9
Deploying 10-Gigabit Ethernet or Gigabit Ethernet Ports
3 X2
10 11 12 SFP 13
"Selecting X2/TwinGig Convertor
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
4 5 6
14 15 16 17
Mode".) Mixing within a port
18
7-13