ZyXEL Communications IES-1248-51A, Руководство пользователя

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Chapter 38 IP Bridge
IES-1248-51V User’s Guide
287
Port Select the check box next to this field if you want the IES-1248-51V to
forward frames to a specific channel in the specified VLAN. Use this
drop-down list box to select the port for the channel.
Note: Make sure you specify a valid IP bridge PVC. Do not
specify PVCs that are not defined in the IPB PVC screen in
Section 38.2 on page 278 .
VPI This field is enabled if the check box next to Port is selected. Type the
Virtual Path Identifier for a channel on this port.
VCI This field is enabled if the check box next to Port is selected. Type the
Virtual Circuit Identifier for a channel on this port.
Add Click Add to create the downlink interface. It is then displayed in the
summary table at the bottom of the screen.
Clicking Add saves your changes to the IES-1248-51V’s volatile
memory. The IES-1248-51V loses these changes if it is turned off or
loses power, so use the Config Save link on the navigation panel to
save your changes to the non-volatile memory when you are done
configuring.
Show Current
Interfaces Click this to look at all the forwarding information for downstream
traffic, whether learned by snooping DHCP packets or provided
manually. (See
Section 38.5.1 on page 288 .)
The bottom section displays downlink interfaces created manually. It
does not show forwarding information learned by snooping DHCP
packets.
Index This field displays the index number of the downlink interface.
Interface IP
NetMask
This field displays the IP address and the number of bits in the subnet
mask that define the range of IP addresses to which this downlink
interface applies. If the destination IP address of a packet is in this
range, the IES-1248-51V tries to forward the frame to a subscriber in
the specified VLAN and PVC, if any.
VID This field displays the VLAN ID the subscriber is in.
Port This field displays the number of the ADSL port to which the IES-
1248-51V forwards frames. It displays “-” if the IES-1248-51V looks
for the subscriber in the whole VLAN and not a specific PVC.
VPI/VCI This field displays the Virtual Path Identifier (VPI) and Virtual Circuit
Identifier (VCI), if any. The VPI and VCI identify a channel on this
port.
Select
Delete
Select the check box in the Select column for an entry, and click
Delete to remove the entry.
Cancel Click Cancel to start configuring the screen again.
Select All Click this to select all entries in the table.
Select None Click this to un-select all entries in the table.
Table 90 IPB Downlink Interface (continued)
LABEL DESCRIPTION