Cisco Catalyst 3750 User Manual

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Catalyst 3750 Switch Command Reference
OL-8552-07
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
ip snap forwarding
ip snap forwarding
Use the ip snap forwarding global configuration command on the switch stack or on a standalone
switch to enable forwarding of IP Version 4 (IPv4) and IP Version 6 (IPv6) frames with Subnetwork
Access Protocol (SNAP) encapsulation. Use no form of this command to disable forwarding of these
frames.
ip snap forwarding
no ip snap forwarding
Syntax Description This command has no arguments or keywords.
Defaults The switch does not forward IPv4 and IPv6 frames with SNAP encapsulation.
Command Modes Global configuration
Command History
Usage Guidelines Use the ip snap forwarding global configuration command to enable forwarding of IPv4 and IPv6
frames with SNAP encapsulation.
If a switch that is joining the stack does not support forwarding of IPv4 and IPv6 frames with SNAP
encapsulation, all the switches in the stack do not forward the IPv4 and IPv6 frames, and this forwarding
feature is disabled.
Examples This example shows how to enable forwarding of IPv4 and IPv6 frames with SNAP encapsulation:
Switch(config)# ip snap forwarding
You can verify your settings by entering the show running-config privileged EXEC command.
Related Commands
Release Modification
12.2(25)SEC This command was introduced.
Command Description
show running-config Displays the running configuration on the switch. For syntax
information, select Cisco IOS Configuration Fundamentals Command
Reference, Release 12.2 > File Management Commands >
Configuration File Management Commands.

Cisco Catalyst 3750 Specifications

General

Device Type	Switch
Switching Capacity	32 Gbps
Forwarding Rate	38.7 Mpps
Stacking Bandwidth	32 Gbps
RAM	128 MB
Jumbo Frame Support	Yes
Switch Type	Managed
Model	Catalyst 3750 Series
Uplink Interfaces	SFP
Form Factor	Rack-mountable
MAC Address Table Size	12, 000 entries
Routing Protocol	RIP, OSPF, EIGRP
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Layer 3 switching, Layer 2 switching, auto-negotiation, BOOTP support, ARP support, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, traffic shaping, MAC address filtering, Quality of Service (QoS), Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), Cisco EnergyWise technology
Power over Ethernet (PoE)	PoE
Operating Temperature	-5 - 45 °C
Operating Humidity	10% to 85% non-condensing