How to Back up using BE 11D across Separate VLANS

Hello

Equipment :

SAN 4/8 Fibre Switch connecting a
Windows 2003 Backup Server with 2 NICS and
HP StorageWorks "Robot" with 2 x LTO4 drives

Ideal Solution :

Set the second NIC on the BE 11D 2003 Server to a separate VLAN eg 10.99.1.x
Set all the secondary NIC cards in all servers that are to be backed up via remote agent to 10.99.1.x
Isolate the "Backup VLAN" from the rest of the network.

Current state :

Over live network, backup working fine.  All correct drivers/patches installed.
When Selecting from BE11D "BACKUP VLAN" NIC and choosing the specified subnet 10.99.1.0, the job gets as far as pre-processing and then the following error occurs

e000fe30 - A communications failure has occurred.

Second NIC Card in BE11D Server : IP Address 10.99.1.2, SM 255.255.255.0, No GW Set
Second NIC Card in BE11D Server : IP Address 10.99.1.1, SM 255.255.555.0, No GW set
nico-Asked:
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nico-Author Commented:
Idiot !

The second line at the end should read

Second NIC Card in Test Server : IP Address 10.99.1.1 SM 255.255.255.0, No GW Set
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nico-Author Commented:
Additional Information : Event ID 34113

Backup Exec Alert: Job Failed
(Server: "ACHBKP002") (Job: "Backup 00088") Backup 00088 -- The job failed with the following error: A communications failure has occurred.
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nico-Author Commented:
I've found the answer.

I was using BE 11D correctly, by selecting the Backup VLAN network interface and the appropriate subnet.  The fault was with the speed of the NICS being different.  I believe the NIC from the remote agent side has to be equal or lower than the NIC at the BE Server side.
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