Preventing Zones From Flooding Fc2 Buffers; Permitting Or Denying Traffic In The Default Zone; Broadcasting A Zone - Cisco MDS 9000 Series Configuration Manual

Configuring and Managing Zones

Preventing Zones From Flooding FC2 Buffers

By using the zone fc2 merge throttle enable command you can throttle the merge requests that are sent from
zones to FC2 and prevent zones from flooding FC2 buffers. This command is enabled by default. This command
can be used to prevent any zone merge scalability problem when you have a lot of zones. Use the show zone
status command to view zone merge throttle information.

Permitting or Denying Traffic in the Default Zone

To permit or deny traffic in the default zone, follow these steps:
Step 1
switch# configure terminal
Enters configuration mode.
Step 2 switch(config)# zone default-zone permit vsan 5
Permits traffic flow to default zone members.
Step 3 switch(config)# no zone default-zone permit vsan 3
Denies traffic flow to default zone members and reverts to factory default.
Step 4
switch(config)# zone commit vsan 5
Commits the changes made to VSAN 5.

Broadcasting a Zone

You can specify an enhanced zone to restrict broadcast frames generated by a member in this zone to members
within that zone. Use this feature when the host or storage devices support broadcasting.
Note broadcast command is not supported from 5.x release onwards.
Table 10: Broadcasting Requirements , on page 129
Table 10: Broadcasting Requirements
Active
Zoning?
Yes
No
Yes
Contains data.
Broadcast Enabled? Frames
Broadcast?
Yes Yes
Yes Yes
No No
Empty. Successful.
Cisco MDS 9000 Series Fabric Configuration Guide, Release 8.x
Preventing Zones From Flooding FC2 Buffers
identifies the rules for the delivery of broadcast frames.
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