Cisco WS-C6506

Contents
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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
CHAPTER 4 Configuring Ethernet, Fast Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet Switching 4-1
Understanding How Ethernet Works 4-1
Switching Frames Between Segments 4-2
Building the Address Table 4-2
Understanding Port Negotiation 4-2
Default Ethernet, Fast Ethernet, Gigabit Ethernet, and 10-Gigabit Ethernet Configuration 4-3
Setting the Port Configuration 4-4
Configuring Supervisor Engine 720 Ports 4-5
Setting the Port Name 4-5
Setting the Port Speed 4-6
Setting the Port Duplex Mode 4-6
Enabling or Disabling Auto-MDI/MDIX 4-7
Configuring IEEE 802.3x Flow Control 4-8
Enabling and Disabling Port Negotiation 4-9
Changing the Default Port Enable State 4-9
Setting the Port Debounce Timer 4-10
Modifying the Port Debounce Timer Setting 4-11
Configuring a Timeout Period for Ports in errdisable State 4-12
Configuring Automatic Module Shutdown 4-14
Configuring Port Error Detection 4-16
Configuring Redundant Flex Links 4-17
Configuring Jumbo Frames 4-19
Checking Connectivity 4-21
CHAPTER 5 Configuring Ethernet VLAN Trunks 5-1
Understanding How VLAN Trunks Work 5-1
Trunking Overview 5-1
Trunking Modes and Encapsulation Type 5-2
802.1Q Trunk Configuration Guidelines and Restrictions 5-4
Default Trunk Configuration 5-5
Configuring a Trunk Link 5-5
Configuring an ISL Trunk 5-6
Configuring an 802.1Q Trunk 5-7
Configuring an ISL/802.1Q Negotiating Trunk Port 5-8
Defining the Allowed VLANs on a Trunk 5-8
Disabling a Trunk Port 5-9
Disabling VLAN 1 on Trunks 5-10
Enabling 802.1Q Tagging of Native VLAN Traffic 5-11
Disabling 802.1Q Tagging on Specific Ports 5-11