438 CHAPTER 33: IPV6 RIPNG CONFIGURATION
Configuring Zero Field
Check on RIPng Packets
Some fields in the RIPng packet must be zero. These fields are called zero fields.
With zero field check on RIPng packets enabled, if such a field contains a non-zero
value, the entire RIPng packet will be discarded. If you are sure that all packets are
trusty, you can disable the zero field check to save the CPU processing time.
Follow these steps to configure RIPng zero field check:
Configuring the
Maximum Number of
Equal Cost Routes for
Load Balancing
Follow these steps to configure the maximum number of equal cost RIPng routes
for load balancing:
Displaying and
Maintaining RIPng
RIPng Configuration
Example
Network requirements
As shown in Figure 142, all switches run RIPng. Configure Switch B to filter the
route (3::/64) learnt from Switch C, which means the route will not be added to
the routing table of Switch B, and Switch B will not forward it to Switch A.
Enable the poison reverse
function
ripng poison-reverse Required
Disabled by default
To do… Use the command… Remarks
To do… Use the command… Remarks
Enter system view system-view --
Enter RIPng view ripng [ process-id ] --
Enable the zero field check checkzero Optional
Enabled by default
To do… Use the command… Remarks
Enter system view system-view --
Enter RIPng view ripng [ process-id ] --
Configure the maximum number of
equal cost RIPng routes for load
balancing
maximum load-balancing
number
Optional
4 by default
To do… Use the command… Remarks
Display configuration information
of a RIPng process
display ripng [ process-id ] Available in any view
Display routes in the RIPng
database
display ripng process-id
database
Available in any view
Display the routing information of a
specified RIPng process
display ripng process-id
route
Available in any view
Display RIPng interface information display ripng process-id
interface [ interface-type
interface-number ]
Available in any view
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