Cisco Cisco Gigabit Ethernet GBIC SFP Modules
2 Release Notes for Catalyst GigaStack Gigabit Interface Converter
Features
The GigaStack GBIC can add port density to a Catalyst 3500 XL or Catalyst 2900 XL network. You
can install the GigaStack GBIC in a 3500 XL switch or into a 1000BaseX module that resides in a
modular 2900 XL switch. When installed in a 3500 XL switch or a 2900 XL module, the GigaStack
GBIC supports 1000BaseX connections. The GigaStack GBIC autonegotiates the duplex settings of
each port to maximize the bandwidth for your configuration.
can install the GigaStack GBIC in a 3500 XL switch or into a 1000BaseX module that resides in a
modular 2900 XL switch. When installed in a 3500 XL switch or a 2900 XL module, the GigaStack
GBIC supports 1000BaseX connections. The GigaStack GBIC autonegotiates the duplex settings of
each port to maximize the bandwidth for your configuration.
The maximum distance for a GigaStack GBIC-to-GigaStack GBIC connection is 1 meter. The
GigaStack GBIC requires Cisco proprietary cabling.
GigaStack GBIC requires Cisco proprietary cabling.
Features
The following features are supported on the GigaStack GBIC:
•
VLAN integration
The GigaStack GBIC supports VTP and Media Access Control (MAC) address-based static
VLANs. See the Cisco IOS Desktop Switching Command Reference publication and the Cisco
IOS Desktop Switching Enterprise Edition Software Configuration Guide for VLAN
configuration information.
VLANs. See the Cisco IOS Desktop Switching Command Reference publication and the Cisco
IOS Desktop Switching Enterprise Edition Software Configuration Guide for VLAN
configuration information.
•
Per-VLAN Spanning-Tree Plus (PVST+)
An independent spanning-tree instance runs on each VLAN. See the Cisco IOS Desktop
Switching Command Reference publication and the Cisco IOS Desktop Switching Enterprise
Edition Software Configuration Guide for spanning-tree configuration information.
Switching Command Reference publication and the Cisco IOS Desktop Switching Enterprise
Edition Software Configuration Guide for spanning-tree configuration information.
•
Trunking (IEEE 802.1Q and ISL)
The GigaStack GBIC supports setting a trunk to IEEE 802.1Q or ISL mode. Enter the switchport
mode trunk command to configure trunk ports and to add VLANs to the allowed VLAN list for
existing trunks. See the switchport mode trunk command description in the Cisco IOS Desktop
Switching Command Reference publication.
mode trunk command to configure trunk ports and to add VLANs to the allowed VLAN list for
existing trunks. See the switchport mode trunk command description in the Cisco IOS Desktop
Switching Command Reference publication.
•
Support for IOS Release 12.0(5.1)XP or later
Installation Notes
Caution
Do not use standard IEEE 1394 cables with the GigaStack GBIC. You must use
one of the Cisco proprietary cables (CAB-GS-50CM or CAB-GS-1M). If you use any
other cable, you will not have connectivity.
other cable, you will not have connectivity.
Caution
Do not use the GigaStack GBIC with standard IEEE 1394 equipment. You
might damage the equipment or lose data.