Users Guide
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100-ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-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.
9.1(0.0) Included usage information on maximum number of digest keys per interface.
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.
7.5.1.0 Introduced on the C-Series.
pre- 6.1.1.1 Introduced on the E-Series.
Usage Information
You can congure 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 dierent key on the interface, enable the new key while the old key is still enabled. Dell EMC
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 EMC recommends keeping
only one key per interface.
NOTE: The MD5 secret is stored as plain text in the conguration le with service password encryption.
Write down or otherwise record the key. You cannot learn the key once it is congured. Use caution
when changing the key.
ip ospf mtu-ignore
Disable OSPF MTU mismatch detection upon receipt of database description (DBD) packets.
S4048–ON
Syntax
ip ospf mtu-ignore
To return to the default, use the no ip ospf mtu-ignore command.
1284 Open Shortest Path First (OSPFv2 and OSPFv3)