Link Bundle Monitoring - Dell S4048–ON Configuration Manual

• Clear dampening counters.
clear dampening
Example of the clear dampening Command
Dell# clear dampening interface Te 1/1
Dell# show interfaces dampening TenGigabitEthernet1/1
InterfaceStateFlapsPenaltyHalf-LifeReuseSuppressMax-Sup
Te 1/1Up00205001500300
Link Dampening Support for XML
View the output of the following show commands in XML by adding | display xml to the end of the command.
•
show interfaces dampening
•
show interfaces dampening summary
•
show interfaces interface x/y
Configure MTU Size on an Interface
In Dell Networking OS, Maximum Transmission Unit (MTU) is defined as the entire Ethernet packet (Ethernet header + FCS +
payload).
The link MTU is the frame size of a packet, and the IP MTU size is used for IP fragmentation. If the system determines that the IP
packet must be fragmented as it leaves the interface, Dell Networking OS divides the packet into fragments no bigger than the size
set in the ip mtu command.
NOTE: Because different networking vendors define MTU differently, check their documentation when planning MTU
sizes across a network.
The following table lists the range for each transmission media.
Transmission MTU Range (in bytes)
Media
Ethernet
594-12000 = link MTU
576-9234 = IP MTU

Link Bundle Monitoring

Monitoring linked LAG bundles allows traffic distribution amounts in a link to be monitored for unfair distribution at any given time. A
threshold of 60% is defined as an acceptable amount of traffic on a member link. Links are monitored in 15-second intervals for three
consecutive instances. Any deviation within that time sends Syslog and an alarm event generates. When the deviation clears,
another Syslog sends and a clear alarm event generates.
The link bundle utilization is calculated as the total bandwidth of all links divided by the total bytes-per-second of all links. If you
enable monitoring, the utilization calculation is performed when the utilization of the link-bundle (not a link within a bundle) exceeds
60%.
To enable and view link bundle monitoring, use the following commands.
• Enable link bundle monitoring.
ecmp-group
• View all LAG link bundles being monitored.
show running-config ecmp-group
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Interfaces