Users Guide

Version Description
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre- 6.1.1.1 Introduced on the E-Series.
Usage Information
You can congure a maximum of six digest keys on an interface. Of the available six digest keys, the switches
select the MD5 key that is common. The remaining MD5 keys are unused.
To change to a dierent key on the interface, enable the new key while the old key is still enabled. Dell Networking
OS sends two packets: the rst packet authenticated with the old key and the second packet authenticated with
the new key. This process ensures that the neighbors learn the new key and communication is not disrupted by
keeping the old key enabled.
After the reply is received and the new key is authenticated, delete the old key. Dell recommends keeping only one
key per interface.
NOTE: The MD5 secret is stored as plain text in the conguration le with service password
encryption. Write down or otherwise record the key. You cannot learn the key once it is congured. Use
caution when changing the key.
ip ospf mtu-ignore
Disable OSPF MTU mismatch detection upon receipt of database description (DBD) packets.
S3048–ON
Syntax
ip ospf mtu-ignore
To return to the default, use the no ip ospf mtu-ignore command.
Defaults Enabled.
Command Modes INTERFACE
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.6.1.0 Introduced on the S-Series.
Open Shortest Path First (OSPFv2 and OSPFv3) 1025