– The link layer protocol of the interfaces that are added into an IP-Trunk interface
must be HDLC.
– By default, the link layer protocol of a POS interface is PPP. You need to run the
link-protocol hdlc command in the POS interface view to change the link layer
protocol to HDLC.
– Before adding an interface to an IP-Trunk, ensure the interface is not configured
with any Layer 3 feature or service.
– A POS interface can join only one IP-Trunk interface. To add the POS interface
to another IP-Trunk interface, you must remove it from the original IP-Trunk first.
– Member interfaces of an IP-Trunk cannot be IP-Trunks.
– The POS interfaces of different interface boards can be added into the same IP-
Trunk.
– Do not bind interfaces with different forwarding capabilities to an IP-Trunk.
– After interfaces with different forwarding capabilities are bound to an IP-Trunk,
each interface assumes the least capability among all the interfaces. For example,
after a 10 Gbit/s POS interface and a 2.5 Gbit/s POS interface are added into an
IP-Trunk, the transmission capability of the 10 Gbit/s POS interface can only reach
2.5 Gbit/s. The transmission capability of the IP-Trunk is 5 Gbit/s rather than 12.5
Gbit/s.
– If an IP-Trunk is created on a local device, the peer device interfaces that are
directly connected with the member interfaces must be bound to an IP-Trunk
interface. Otherwise, the two ends cannot communicate.
----End
3.4.3 Configuring an IP Address for the IP-Trunk Interface
You can assign an IP address to an IP-Trunk interface and configure member interfaces to borrow
the IP address of the IP-Trunk interface.
Context
Do as follows on the switchs that are configured with IP-Trunk interfaces.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface ip-trunk trunk-id
The IP-Trunk interface view is displayed.
Step 3 Run:
ip address ip-address { mask | mask-length }
The IP address is configured for the IP-Trunk interface.
----End
Quidway S9300 Terabit Routing Switch
Configuration Guide - WAN Access 3 HDLC and IP-Trunk Configuration
Issue 02 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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