Chapter 2 Rip Configuration Commands; Rip Configuration Commands; Checkzero - Huawei quidway s3526 series Getting Started

Command Manual - Routing Protocol
Quidway S3500 Series Ethernet Switches

Chapter 2 RIP Configuration Commands

Note:
When an Ethernet switch runs a routing protocol, it can perform the router functions.
Router that is referred to in the following and its icon represent a generalized router or
an Ethernet switch running routing protocols. To improve readability, this will not be
described in the other parts of the manual.

2.1 RIP Configuration Commands

2.1.1 checkzero

Syntax
checkzero
undo checkzero
View
RIP view
Parameter
None
Description
Using checkzero command, you can check the zero field of RIP-1 packet. Using undo
checkzero command, you can disable the checking of the zero fields.
By default, RIP-1 performs the zero field checking.
According to the protocol (RFC1058) specifications, some fields in RIP-1 packets must
be zero, called zero fields. With the checkzero command, the zero check operation of
RIP-1 can be enabled or disabled. During the zero check operation, if the RIP-1 packet
in which the zero fields are not zeros is received, it will be rejected.
This command is ineffective to RIP-2 since RIP-2 packets have no zero fields.
Example
# Configure not to perform zero check for RIP-1 packet.
[Quidway-rip] undo checkzero
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Chapter 2 RIP Configuration Commands