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Configuration Guide - Ethernet Switching

S7700 and S9700 V200R012C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, HVRP, and Layer 2 protocol transparent transmission.
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How Do I Implement Communication Between Specific Sub-VLANs in a Super-VLAN

How Do I Implement Communication Between Specific Sub-VLANs in a Super-VLAN

When VLAN aggregation is configured, hosts in a super-VLAN use IP addresses on the same network segment and share the same gateway address. Hosts in different sub-VLANs belong to the same subnet, so the switch forwards packets between the hosts by searching for ARP entries but not through the gateway. Proxy ARP allows the switch to establish ARP entries for all sub-VLANs for interworking.

To implement communication between some sub-VLANs, configure static ARP entries to bind destination IP addresses to the gateway MAC address on hosts in the sub-VLANs.

For example, if host A with the gateway MAC address of 00-aa-00-62-c6-09 wants to access host B with the IP address of 10.10.10.2/24, perform the following operations:
  1. Choose Start > Run, enter cmd, and press Enter.
  2. Enter arp -s 10.10.10.2 00-aa-00-62-c6-09.

After the preceding configuration is complete, host A can access host B. If host B needs to access host A, configure a static ARP entry to bind host A's IP address to the gateway MAC address on host B.

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Updated: 2019-01-18

Document ID: EDOC1100038843

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