Cisco HWIC-4ESW User Guide - Page 3

Prerequisites for Installing Two Ethernet Switch Network Modules in a Single Chassis - configure

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Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards Prerequisites for Installing Two Ethernet Switch Network Modules in a Single Chassis Prerequisites for Installing Two Ethernet Switch Network Modules in a Single Chassis A maximum of two Ethernet switch network modules can be installed in a single chassis. If two Ethernet switch network modules of any type are installed in the same chassis, the following configuration requirements must be met: • Both Ethernet switch network modules must have an optional Gigabit Ethernet expansion board installed. • An Ethernet crossover cable must be connected to the two Ethernet switch network modules using the optional Gigabit Ethernet expansion board ports. • Intrachassis stacking for the optional Gigabit Ethernet expansion board ports must be configured. For information about intrachassis stacking configuration, see the 16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series module. Note Without this configuration and connection, duplications will occur in the VLAN databases, and unexpected packet handling may occur. Information About EtherSwitch HWICs • VLANs, page 3 • Inline Power for Cisco IP Phones, page 4 • Layer 2 Ethernet Switching, page 4 • 802.1x Authentication, page 4 • Spanning Tree Protocol, page 4 • Cisco Discovery Protocol, page 4 • Switched Port Analyzer, page 4 • IGMP Snooping, page 4 • Storm Control, page 4 • Intrachassis Stacking, page 5 • Fallback Bridging, page 5 • Default 802.1x Configuration, page 5 VLANs For conceptual information about VLANs, see the "VLANs" section of the EtherSwitch Network Module. 3

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Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
Prerequisites for Installing Two Ethernet Switch Network Modules in a Single Chassis
3
Prerequisites for Installing Two Ethernet Switch Network
Modules in a Single Chassis
A maximum of two Ethernet switch network modules can be installed in a single chassis. If two Ethernet
switch network modules of any type are installed in the same chassis, the following configuration
requirements must be met:
•
Both Ethernet switch network modules must have an optional Gigabit Ethernet expansion board
installed.
•
An Ethernet crossover cable must be connected to the two Ethernet switch network modules using
the optional Gigabit Ethernet expansion board ports.
•
Intrachassis stacking for the optional Gigabit Ethernet expansion board ports must be configured.
For information about intrachassis stacking configuration, see the
16- and 36-Port Ethernet Switch
Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series
module.
Note
Without this configuration and connection, duplications will occur in the VLAN databases, and
unexpected packet handling may occur.
Information About EtherSwitch HWICs
•
VLANs, page 3
•
Inline Power for Cisco IP Phones, page 4
•
Layer 2 Ethernet Switching, page 4
•
802.1x Authentication, page 4
•
Spanning Tree Protocol, page 4
•
Cisco Discovery Protocol, page 4
•
Switched Port Analyzer, page 4
•
IGMP Snooping, page 4
•
Storm Control, page 4
•
Intrachassis Stacking, page 5
•
Fallback Bridging, page 5
•
Default 802.1x Configuration, page 5
VLANs
For conceptual information about VLANs, see the
“VLANs”
section of the
EtherSwitch Network
Module
.