Padding Is-Is Hello Packets; Configuring Lsp Parameters - Juniper IGP - CONFIGURATION GUIDE V11.1.X Configuration Manual

JUNOSe 11.0.x IP, IPv6, and IGP Configuration Guide

Padding IS-IS Hello Packets

You can use the isis hello padding command to configure IS-IS hello packet padding.
Padding the hello packets promotes early error detection due to transmission
problems with large frames or due to mismatched MTUs on adjacent interfaces.
When disabled (default), IS-IS hello packets are padded to the full MTU size until an
adjacency is formed with the adjacent interface. After the adjacency is formed, the
hello packets are no longer padded. When enabled, IS-IS hello packets are always
padded.
isis hello padding

Configuring LSP Parameters

You can configure the transmission interval, retransmission interval, and
retransmission throttle interval for LSPs on an interface-specific basis.
isis lsp-interval
350
Configuring IS-IS Interface-Specific Parameters
See isis hello-interval
See isis hello-multiplier
Use to pad IS-IS hello packets to their full maximum transmission unit (MTU)
size.
Example
host1(config-if)#isis hello padding
Use the no version to restore the hello padding to its default, no padding.
See isis hello padding
Use to configure the delay between successive IS-IS link-state PDU (LSP)
transmissions.
You can choose an interval in the range 1–4294967295 milliseconds. For
example, setting 100 milliseconds allows 10 packets per second.
The default value is 33 milliseconds.
If your network has many IS-IS neighbors and interfaces, a particular router may
have difficulty with the CPU load imposed by LSP transmission and reception.
If this is the case, you can reduce the LSP transmission rate by issuing this
command.
Example
host1(config-if)#isis lsp-interval 100
Use the no version to restore the default value, 33 milliseconds.
See isis lsp-interval