Configuring Lacp Mad - HP 6125G Configuration Manual

Table 1 A comparison of the MAD mechanisms
MAD
mechanism
LACP MAD
BFD MAD
ARP MAD

Configuring LACP MAD

When you use LACP MAD, follow these guidelines:
The intermediate device must be an HP device that support extended LACP for MAD.
•
If the intermediate device is in an IRF fabric, assign this fabric a different domain ID than the LACP
•
MAD-enabled fabric to avoid false detection of IRF split.
Use dynamic link aggregation mode. MAD is LACP dependent. Even though LACP MAD can be
•
configured on both static and dynamic aggregate interfaces, it takes effect only on dynamic
aggregate interfaces.
• Configure link aggregation settings also on the intermediate device.
To configure LACP MAD:
Step
1. Enter system view.
Advantages
•
Detection speed is fast.
•
Requires no MAD-dedicated
physical ports or interfaces.
•
Detection speed is fast.
•
No intermediate device is
required.
•
Intermediate device, if used,
can come from any vendor.
•
No intermediate device is
required.
•
Intermediate device, if used,
can come from any vendor.
•
Requires no MAD dedicated
ports.
Command
system-view
Disadvantages
Requires an intermediate HP
device that supports LACP
MAD packets.
•
Requires MAD dedicated
physical ports and Layer
3 interfaces, which
cannot be used for
transmitting user traffic.
•
If no intermediate device
is used, the IRF members
must be fully meshed.
•
If an intermediate device
is used, every IRF
member must connect to
the intermediate device.
•
Detection speed is slower
than BFD MAD and LACP
MAD.
Spanning tree feature
•
must be enabled.
22
Application scenario
Link aggregation is used
between the IRF fabric
and its upstream or
downstream device.
For information about
LACP, see Layer 2—LAN
Switching Configuration
Guide.
•
Suitable for various
network scenarios.
•
If no intermediate
device is used, this
mechanism is only
suitable for IRF fabrics
that have a small
number of members
that are
geographically close
to one another.
For information about
BFD, see High
Availability
Configuration Guide.
Spanning tree-enabled
non-link aggregation IPv4
network scenario.
For information about
ARP, see Layer 3—IP
Services Configuration
Guide.
Remarks
N/A