ZyXEL Communications MSC1000G Series, Руководство пользователя

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Chapter 9 Subscriber Port Setup Screens
Management Switch Card User’s Guide
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addresses. The MSC uses the VLAN ID to identify the domain the downlink interface is in. Downlink
interfaces in the same domain cannot have overlapping IP addresses.
9.14.2.4 Routing Tables
Each domain has its own routing table. Each routing table contains entries that, based on the
destination IP address, control where the MSC forwards packets (for upstream and downstream
traffic). The MSC automatically creates routing table entries for each downlink interface and for
each edge router in the domain. You can create additional entries by specifying the edge router to
which the MSC should forward traffic for a particular destination IP address or IP subnet.
9.14.2.5 PVCs
IP bridge PVCs are similar to regular PVCs and are endpoints of the IP bridge. In addition, IP bridge
PVCs are one of two types, IP over Ethernet or IP over ATM, depending on the underlying network.
The PVID is used to identify the domain the PVC is in, so the PVID must be in a domain.
9.14.2.6 ARP Proxy Settings
The MSC is an ARP proxy for edge routers and subscribers in an IP bridge. You can configure basic
settings for this, and you can look at (and flush, in some cases) the (PVC, MAC, IP, VID) information
the MSC has learned using DHCP snooping and ARP.
9.14.3 IP Bridge Configuration
Follow these steps to set up a simple IP bridge.
1
Create a domain. (Each domain is an ISP.)
2
Create one or more VLANs in the domain. (For example, one VLAN is for high-speed Internet, and
another VLAN is for VoIP.)
3
Create the VLAN in the system using the regular screens or commands for VLANs.
4
Specify one or more edge routers for the domain.
5
Create routing table entries, so the MSC forwards frames to the appropriate edge router.
6
Create downlink interfaces, so the MSC forwards frames to the appropriate subscribers.
7
Create PVCs for the subscribers.
9.15 IPB ARP Proxy Screen
Use this screen to configure how long the MSC keeps entries in the ARP table. You can also flush the
Address Resolution Protocol (ARP) table for each domain.
To open this screen, click Port > IP Bridge .
See Section 12.7 on page 420 for how to display the ARP table for each domain.