Cisco Systems 3825 manual Ip tos l2tp, Ip tos value value reflect No tos value value reflect

Appendix A Cisco 3825 Mobile Wireless Edge Router RAN-O Command Reference

ip tos (l2tp)

ip tos (l2tp)

To configure the Type of Service (ToS) byte in the header of Layer 2 tunneled packets, use the ip tos command in the pseudowire-class configuration mode. To disable a configured ToS value or IP ToS reflection, use the no form of this command.

ip tos {value value reflect}

no tos {value value reflect}

Syntax Description		value value	Sets the value of the ToS byte for IP packets in a L2TPv3 session. Valid
			values range from 0 to 255. The default value is 0.
		reflect	Sets the value of the ToS byte for IP packets in an L2TPv3 session to be
			reflected from the inner IP header.
Defaults		The default ToS value is 0.
Command Modes		Pseudowire-class configuration
Command History		Release	Modification
		12.0(23)S	This command was introduced.
		12.3(2)T	This command was integrated into Cisco IOS Release 12.3(2)T.
		12.4(12)MR2	This command was integrated into Cisco IOS Release 12.4(12)MR2.
		The ip tos command allows you to manually configure the value of the ToS byte used in the headers of
Usage Guidelines
		Layer 2 tunneled packets or to have the ToS value reflected from the IP header of the encapsulated
		packet.
	Note	IP ToS byte reflection functions only if traffic in an L2TPv3 session carries IP packets as its payload.
		In addition, you can configure both IP ToS reflection and a ToS priority level (from 0 to 255) for a
		pseudowire-class. In this case, the ToS value in the tunnel header defaults to the value you specify with
		the ip tos value value command. IP packets received on the Layer 2 interface and encapsulated into the
		L2TPv3 session have their ToS byte reflected into the outer IP session, overriding the default value
		configured with the ip tos value value command.
Examples		In the following example, the ToS byte in the headers of tunneled packets in Layer 2 tunnels created from
		the pseudowire-class named “l2tp” is set as 5:
		Router# config t
		Router(config)# pseudowire-class l2tp
		Router(config-pw-class)# ip tos 5
			Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
	OL-15667-03			A-47