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
remote-span
remote-span
Use the remote-span VLAN configuration command to configure a VLAN as a Remote Switched Port
Analyzer (RSPAN) VLAN. Use the no form of this command to remove the RSPAN designation from
the VLAN.
remote-span
no remote-span
Syntax Description This command has no arguments or keywords.
Defaults No RSPAN VLANs are defined.
Command Modes VLAN configuration (config-VLAN)
Command History
Usage Guidelines You can configure RSPAN VLANs only in config-VLAN mode (entered by using the vlan global
configuration command), not the VLAN configuration mode entered by using the vlan database
privileged EXEC command.
If VLAN Trunking Protocol (VTP) is enabled, the RSPAN feature is propagated by VTP for VLAN-IDs
that are lower than 1005. If the RSPAN VLAN ID is in the extended range, you must manually configure
intermediate switches (those in the RSPAN VLAN between the source switch and the destination
switch).
Before you configure the RSPAN remote-span command, use the vlan (global configuration) command
to create the VLAN.
The RSPAN VLAN has these characteristics:
• No MAC address learning occurs on it.
• RSPAN VLAN traffic flows only on trunk ports.
• Spanning Tree Protocol (STP) can run in the RSPAN VLAN, but it does not run on RSPAN
destination ports.
When an existing VLAN is configured as an RSPAN VLAN, the VLAN is first deleted and then
recreated as an RSPAN VLAN. Any access ports are made inactive until the RSPAN feature is disabled.
Release Modification
12.1(11)AX This command was introduced.

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