Trunking considerations for access gateway mode – Brocade Access Gateway Administrator's Guide (Supporting Fabric OS v7.3.0) User Manual

Page 79

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Access Gateway trunking considerations for the Edge switch (Continued)

TABLE 10

Category

Description

AD

You cannot create a Trunk Area on ports with different Admin Domains. You cannot
create a Trunk Area in AD255.

DCC Policy

DCC policy enforcement for the F_Port trunk is based on the Trunk Area; the FDISC
request to a trunk port is accepted only if the WWN of the attached device is part of the
DCC policy against the TA. The PWWN of the FLOGI sent from the AG will be dynamic
for the F_Port trunk master. Because you do not know ahead of time what PWWN AG
will use, the PWWN of the FLOGI will not go through DCC policy check on an F_Port
trunk master. However, the PWWN of the FDISC will continue to go through DCC
policy check.

D,I Zoning (D,I) AD

(D, I) DCC and (PWWN,
I) DCC

Creating a Trunk Area may remove the Index ("I") from the switch to be grouped to the
Trunk Area. All ports in a Trunk Area share the same "I". This means that
Domain,Index (D,I), which refers to an "I", that might have been removed, will no longer
be part of the switch.

Note : Ensure to include AD, zoning, and DCC when creating a Trunk Area.

You can remove the port from the Trunk Area to have the "I" back into effect. D,I will
behave as normal, but you may see the effects of grouping ports into a single "I".

Also, D,I continues to work for Trunk Area groups. The "I" can be used in D,I if the "I"
was the "I" for the Trunk Area group.

Note : "I" refers to Index and D,I refers to Domain,Index.

Two masters

Two masters is not supported in the same F_Port trunk group.

QoS

Supported.

PWWN format for F_Port and N_Port trunk ports

TABLE 11

NAA = 2 2f:xx:nn:nn:nn:nn:nn:nn

(1)

Port WWNs for:

switch FX_Ports.

The valid range of xx is [0 - FF], for maximum
of 256.

NAA = 2 25:xx:nn:nn:nn:nn:nn:nn

(1)

Port WWNs for: switch
FX_Ports

The valid range of xx is [0 - FF], for maximum
of 256.

Trunking considerations for Access Gateway mode

Consider the following for trunking in Access Gateway mode:

Access Gateway trunking is not supported on M-EOS or third-party switches.

Trunk groups cannot span across multiple N_Port groups within an AG module in AG mode.
Multiple trunk groups are allowed within the same N_Port group. All ports within a trunk group must
be part of the same port group; ports outside of a port group cannot form a trunk group.

The ag -wwnmapshow command will not display trunking for device-mapped ports. If a device is
mapped to a port with device mapping and that port is currently part of a trunk, then the device will
use that trunk. When trunking is used with the Device Load Balancing policy, then the load on each

Trunking considerations for Access Gateway mode

Access Gateway Administrator's Guide

77

53-1003126-01

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