Cisco 7206 - VXR Router Configuration Manual page 168

Information About Port Channels
S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - d o c f e e d b a c k @ c i s c o . c o m
Table 6-2
Configurations
Channel mode of
links
Maximum number
of links in channel
LACP Compatibility Enhancements
Several new commands have been added in Release 4.2(3) to address interoperability issues and to assist
with faster LACP protocol convergence.
When the Cisco Nexus 7000 Series device is connected to a non-Nexus peer, its graceful failover
defaults may delay the time taken for a disabled port to be brought down or cause traffic from the peer
to be lost. To address these conditions, the lacp graceful-convergence command was added.
By default, LACP sets a port to the suspended state if it does not receive an LACP PDU from the peer.
In some cases, although this feature helps in preventing loops created due to misconfigurations, it can
cause servers to fail to boot up because they require LACP to logically bring up the port. You can put a
port into an individual state by using the lacp suspend-individual command.
LACP Port-Channel MinLinks and MaxBundle
A port channel aggregates similar ports to provide increased bandwidth in a single manageable interface.
With the Cisco NX-OS Release 5.1, the introduction of the minlinks and maxbundle feature further
refines LACP port-channel operation and provides increased bandwidth in one manageable interface.
The LACP port-channel MinLink feature does the following:
•
•
•
The LACP MaxBundle defines the maximum number of bundled ports allowed in a LACP port channel.
The LACP MaxBundle feature does the following:
•
•
The minlink and maxbundle feature works only with LACP port channels. However, the device allows
Note
you to configure this feature in non-LACP port channels, but the feature is not operational.
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide, Release 5.x
6-12
Port Channels with LACP Enabled and Static Port Channels (continued)
Port Channels with LACP Enabled Static Port Channels
Can be either:
Active
•
Passive
•
16
Configures the minimum number of ports that must be linked up and bundled in the LACP port
channel.
Prevents the low-bandwidth LACP port channel from becoming active.
Causes the LACP port channel to become inactive if there are few active members ports to supply
the required minimum bandwidth.
Defines an upper limit on the number of bundled ports in an LACP port channel.
Allows hot-standby ports with fewer bundled ports. (For example, in an LACP port channel with
five ports, you can designate two of those ports as hot-standby ports.)
Chapter 6 Configuring Port Channels
Can only be On
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