Nortel Networks 8000 - Manual (Page 90)

Nortel Secure Router 8000 Series
Configuration -WAN Access 4 POS and CPOS interface configuration
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 2/2/3 ms
—End
Configuration files
• Configuration file of Router A
#
sysname RouterA
#
interface Pos1/0/0
link-protocol ppp
ip address 10.110.1.10 255.255.255.0
#
return
• Configuration file of Router B
#
sysname RouterB
#
interface Pos4/0/0
clock master
link-protocol ppp
ip address 10.110.1.11 255.255.255.0
#
return
4.7.2 Example for configuring STM-1 CPOS interfaces
Networking requirements
You use the CPOS interface to enhance the convergence ability of the router. The STM-1
CPOS interface aggregates several E1/T1 interfaces.
Some mid-range-and-low-end routers access the transmission network through E1/T1 leased
cable. The user, requiring a bandwidth between E1/T1 and T3 (44M), such as the date center,
leases several E1/T1s at the same time. All the bandwidths converge to one or more
channelized POS interfaces and then access Router A. A unique timeslot defines each
mid-range-and-low-end router.
You can have only one transmission network between the channelized POS interface and the
mid-range-and-low-end router. You can adopt other transmission methods as well.
Issue 5.3 (30 March 2009) Nortel Networks Inc. 4-29