User manual

Nortel Secure Router 8000 Series
Configuration -WAN Access 4 POS and CPOS interface configuration
Issue 5.3 (
30 March 2009) Nortel Networks Inc. 4-9
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Support for VPN
Each E1/T1 channel or MP group corresponds to a VPN. The STM-1 CPOS interface supports
to add or remove an E1/T1 channel or an MP group into or from a VRF. For the E1/T1
channel and the MP group added to the VPN, you can set whether to allow access to the
public routing table.
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Traffic statistics
The SR8000 supports IP/MPLS data packet forwarding and traffic statistics on the E1/T1
channel and the MP group.
4.2 Configuring POS interfaces
4.2.1 Establishing the configuration task
Applicable Environment
When you use SONET/SDH to bear packet data, you need to configure the POS interface.
NOTE
By default, the default configuration exists. Completing the steps in this section are optional.
Pre-configuration tasks
None.
Data preparation
To configure a POS interface, you need the following data.
No. Data
1 Number of the POS interface of the router
2 Overload bytes C2, J0 and J1
3 MTU of the POS interface
Configuration procedures
No. Procedure
1 Configuring link layer protocol
2 Configuring clock mode
3 Configuring overhead bytes
4 Configuring frame format
5 Configuring scramble