6-2
Cisco SCE8000 Software Configuration Guide
OL-16479-02
Chapter 6 Configuring the Line Interface
Tunneling Protocols
How to Configure the Ten Gigabit Ethernet Line Interfaces
The 10GBE line interfaces are configured in TenGigabitEthernet mode.
Step 1 At the SCE# prompt, type configure and press Enter.
Enters Global Configuration mode.
Step 2 At the SCE(config)# prompt, type interface TenGigabitEthernet 3/bay number/0 and press Enter,
where bay number is the number of the selected SPA bay (0-3). Currently, the slot number is always 3
and the port number is always 0.
Enters Interface Configuration mode for the selected 10 GBE interface.
Step 3 At the SCE(config-if)# prompt, type exit and press Enter.
Exits to global configuration mode, from which you can access a different Ten Gigabit Ethernet
interface.
Tunneling Protocols
• Selecting the Tunneling Mode, page 6-3
• Asymmetric L2 Support, page 6-7
• How to Display the Tunneling Configuration, page 6-8
Tunneling technology is used across various telecommunications segments to solve a wide variety of
networking problems. The SCE platform is designed to recognize and process various tunneling
protocols in several ways. The SCE platform is able to either ignore the tunneling protocols ("skip" the
header) or treat the tunneling information as subscriber information ("classify").
The following table shows the support for the various tunneling protocols (the default behavior for each
protocol is in bold):
Table 6-1 Tunneling Protocol Summary
Protocol Supported handling Mode name
Symmetric/
Asymmetric
L2TP Ignore tunnel IP-tunnel L2TP skip asymmetric
Don't ignore tunnel – classify by
external IP
No IP-Tunnel symmetric
IPinIP Ignore tunnel ip-tunnel IPinIP skip symmetric
Don't ignore tunnel – classify by
external IP
no ip-tunnel IPinIP skip symmetric
VLAN Ignore tunnel VLAN symmetric skip symmetric
Ignore tunnel – asymmetric VLAN a-symmetric skip asymmetric
VLAN tag used for VPN classification VLAN symmetric classify symmetric
MPLS Ignore tunnel (inject unlabeled) MPLS
traffic-engineering skip
symmetric