HP FlexFabric 12500 Series Configuration Manual page 35

Routing
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MAD
mechanism
BFD MAD
ARP MAD
ND 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 also an IRF fabric, assign the two IRF fabrics different domain IDs for
correct split detection. False detection causes 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.
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.
No intermediate device is
required.
Intermediate device, if used,
can come from any vendor.
Requires no MAD dedicated
ports.
Command
system-view
Disadvantages
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.
The spanning tree feature
must be enabled.
Detection speed is slower
than BFD MAD and LACP
MAD.
The spanning tree feature
must be enabled.
31
Application scenario
No special
requirements for
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.
Spanning tree-enabled
non-link aggregation IPv6
network scenario.
Remarks
N/A

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