R21xx-HP FlexFabric 11900 Security Configuration Guide

142
Network application
Figure 52 Network diagram
Configure strict uRPF check between an ISP network and a customer network. Configure loose uRPF
check between ISPs.
Configuration procedure
To enable uRPF globally:
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Enable uRPF check globally.
ip urpf { loose | strict }
uRPF check is disabled on an
interface by default.
After you enable the uRPF function on the switch, the routing table capacity decreases by half on the
following MPUs and LPUs. See Table 7.
Table 7 MPUs and LPUs
MPU model
LPU model
Half reduction of routing table
ca
p
acit
y
occurs on…
LSU1SUPB9
(JG609A)
SF LPU (with the last two letters of the LPU model
being SF, such as LSU1TGS32SF9 (JG611A) )
SF LPU, and MPU