Setup guide

3-13
Cisco 6400 Software Setup Guide
OL-1183-04
Chapter3 Basic NRP Configuration
NRP-2 and NRP-2SV Configuration
In the following example, the network neighbor MTU size is reduced to 1900 to match the MTU size of
the NRP-2.
!
interface ATM0/0/0
mtu 1900
no ip address
atm vc-per-vp 2048
no atm ilmi-keepalive
!
Verifying the MTU Size of the NRP-2 and Its Network Neighbors
To verify that the MTU size matches for the NRP-2 and its network neighbors, complete the following
steps for each network neighbor:
Step 1 Use the show interface atm 0/0/0[.subinterface] EXEC command on the NRP-2 to view the NRP-2
MTU size.
Step 2 Use the show interface EXEC command on the network neighbor to view the neighbor’s MTU size.
Step 3 Make sure that the MTU sizes for the NRP-2 and the network neighbor are identical.
Modifying VPI and VCI Ranges on the NRP-2
To change the VPI and VCI ranges, use the following commands beginning in global configuration
mode:
Note Entering t he atm vc-per-vp command in interface configuration mode resets the ATM interface.
Command Purpose
Step1
Router(config)# interface atm 0/0/0
Selects the ATM interface on the NRP-2.
Step2
Router(config-if)# atm vc-per-vp number
Sets the maximum number of allowed VCIs. The number of
allowed VPIs is adjusted accordingly. See Table3-3 for the
allowed values for number.
Table3-3 Allowed Entries for the number Argument
number
1
VCI Range VCI Bits
NRP-2SV
2
NRP-2
VPI Range VPI Bits VPI Range VPI Bits
64 0–63 6 0–255 8 0–255 8
128 0–127 7 0–255 8 0–127 7
256 0–255 8 0–255 8 0–63 6
512 0–511 9 0–127 7 0–31 5
1024 (default) 0–1023 10 0–63 6 0–15 4