Cisco SCE8000 Configuration Guide

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Cisco SCE8000 Software Configuration Guide
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Chapter 6 Configuring the Line Interface
Tunneling Protocols
Disabling IPinIP Tunneling
Step 1 From the SCE(config-if)# prompt, type no ip-tunnel IPinIP skip and press Enter.
DSCP Marking for IPinIP Tunnels
DSCP marking modifies the DSCP bits of the IPv4 header. In IPinIP tunnels there are at least two IP
headers. By default, DSCP marking is performed only on the external IP header (refer to the illustration
below).
Figure 6-1 DSCP Marking for IPinIP Tunnels
Note DSCP marking should be enabled and configured through SCA BB console. Refer to the section “How
to Manage DSCP Marker Values" in the chapter "Using the Service Configuration Editor: Traffic
Control" in the Cisco Service Control Application for Broadband User Guide for further information.
Use this command to configure the SCE platform to mark the DSCP bits of the internal IP header. This
command takes effect only when IPinIP skip is enabled.
Step 1 From the SCE(config-if)# prompt, type ip-tunnel IPinIP DSCP-marking-skip and press Enter.
Enables DSCP marking on the internal IP header of IPinIP traffic.
Version H Len TOS Total Length
Identification Fragment OffsetFlags
TTL Protocol Header Checksum
Source Address
Destination Address
Version H Len TOS Total Length
Identification Fragment OffsetFlags
TTL Protocol Header Checksum
Source Address
Destination Address
L4 – L7
L1 – L2
External DSCP
marking
Internal DSCP
marking
Internal IP
header
External IP
header
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Cisco SCE8000 Specifications

General

Brand	Cisco
Model	SCE8000
Category	Network Hardware
Language	English