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NE40E V800R010C00 Feature Description - WAN Access 01

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Application Scenarios for HDLC and IP-Trunk

Application Scenarios for HDLC and IP-Trunk


Figure 3-3  HDLC

On the network shown in Figure 3-3, a point-to-point link is established betweenDevice A and Device B, and HDLC is configured on Device A and Device B. HDLC provides simple, stable, and reliable data transmission and features high fault tolerance at the data link layer.


For an IP-Trunk interface, you can configure weights for member interfaces to implement load balancing among member interfaces. There are two load balancing modes, namely, per-destination and per-packet load balancing.

  • Per-destination load balancing: packets with the same source and destination IP addresses are transmitted over one member link.

  • Per-packet load balancing: packets are transmitted over different member links.

As shown in Figure 3-4, two routers are connected through POS interfaces that are bundled into an IP-Trunk interface to transmit IPv4, IPv6, and MPLS packets.

Figure 3-4  IP-Trunk networking
Updated: 2018-07-04

Document ID: EDOC1100027168

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