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Catalyst GigaStack Gigabit Interface Converter Hardware Installation Guide
78-6460-04
Chapter 1 Overview
Minimum IOS Release for Redundant Loop Configurations
Minimum IOS Release for Redundant Loop
Configurations
To ensure support for redundant loop configurations when using the GigaStack
GBIC in a cascaded stack configuration, make sure that every switch in the stack
is running at least the minimum IOS Release listed in Table 1-5.
Catalyst 3500 XL switches
Catalyst 3508G XL 8 GBIC module slots
Catalyst 3512 XL 12 autosensing 10/100 Ethernet
ports and 2 GBIC module slots
Catalyst 3524 XL 24 autosensing 10/100 Ethernet
ports and 2 GBIC module slots
Catalyst 3524 PWR XL 24 autosensing 10/100
inline-power Ethernet ports and
2 GBIC module slots
Catalyst 3548 XL 48 autosensing 10/100 Ethernet
ports and 2 GBIC module slots
Catalyst 3550 switches
Catalyst 3550-12G 2 autosensing 10/100/1000
Ethernet ports and 10 GBIC
module slots
Catalyst 3550-12T 10 autosensing 10/100/1000
Ethernet ports and 2 GBIC
module slots
Catalyst 3550-24-SMI
Catalyst 3550-24-EMI
24 autosensing 10/100 Ethernet
ports and 2 GBIC module slots
Catalyst 3550-48-SMI
Catalyst 3550-48-EMI
48 autosensing 10/100 Ethernet
ports and 2 GBIC module slots
1. The 1000BASE-X module provides one switched 1000-Mbps port in half-duplex, full-duplex, or autonegotiation mode for a
GigaStack GBIC. The port supports the IEEE 802.3Z 1000BASE-X standard.
Switch Series or Module Model Number Description