HP StorageWorks Enterprise File Services WAN Accelerator - Manual (Page 50)

50 2 - C ONFIGURING THE HP EFS WAN A CCELERATOR
‹ Routers are often configured with fixed speed and duplex settings. Check your
router configuration and set it to match the HP EFS WAN Accelerator WAN and
LAN settings. Make sure your switch has the correct setting.
‹ After you finish configuring the HP EFS WAN Accelerator, check for speed and
duplex error messages (crc or frame errors) in the Logging, View System Log
page of the Management Console. For detailed information about viewing HP
EFS WAN Accelerator logs, see
“Viewing HP EFS WAN Accelerator Logs” on
page 166 .
‹ If there is a serious problem with the HP EFS WAN Accelerator and it goes into
bypass mode (that is, it automatically continues to pass traffic through your
network), a speed and duplex mismatch might occur when you reboot the HP EFS
WAN Accelerator. To avoid a speed and duplex mismatch, configure your LAN
external pair to match the WAN external pair. For example, auto on the LAN and
WAN and fixed to 100 FULL on both the LAN and WAN.
VLAN Tag ID Optionally, you can set a Virtual Local Area Network (VLAN) tag identification
number (ID) for your in-path interfaces in the Setup: Host Settings - Interface: In-Path
(LAN/WAN) page.
When you specify the VLAN Tag ID for the in-path interface, all packets originating
from the HP EFS WAN Accelerator are tagged with that identification number. This is
the VLAN tag that the HP EFS WAN Accelerator will use to communicate with other
HP EFS WAN Accelerators in your network. The VLAN Tag ID might be the same
value or a different value than the VLAN tag used on the client. A zero (0) value
specifies non-tagged (or native) VLAN.
When the HP EFS WAN Accelerator communicates with a client or a server it uses the
same VLAN tag as the client or the server. If the HP EFS WAN Accelerator cannot
determine which VLAN the client or server is in, it uses its own VLAN until it is able
to determine that information.
IMPORTANT: You must also define in-path rules to apply to your VLANs in the Setup:
Optimization Service - In-Path Rules page
. For detailed information, see “Enabling VLAN
Tagging” on page 29 .
To set the in-path
interface 1. Click the Setup tab to display the Setup: Optimization Service - General Settings
page.
2. Click Host Settings in the left menu to display the Setup: Host Settings - Interface:
Primary page.