3Com 10014299 manual Configure to add ethernet port to Bridge set, Configure Sdlc role

386CHAPTER 25: CONFIGURING DLSW

Please process the following configurations in the Ethernet interface view.

Table 431 Configure to add ethernet port to Bridge set

Operation	Command
Configure to add Ethernet port to Bridge set	bridge-set
	bridge-set-number
Delete the configuration of adding Ethernet port to	undo bridge-set
Bridge set	Bridge-set-number

No Ethernet port is added to Bridge set by default.

5Configure Link Layer Protocol for Interface Encapsulation as SDLC

SDLC is a link layer protocol relative to SNA. The working principle is very similar to HDLC. To allow DLSw to operate normally, the encapsulation protocol of synchronous interface link layer should be changed to SDLC.

Please process the following configurations in the synchronous interface view.

Table 432 Configure link layer protocol for Interface encapsulation to be SDLC

Operation	Command
Configure link layer protocol for interface encapsulation	link-protocol sdlc
to be SDLC

By default, the link layer protocol of synchronous interface encapsulation is PPP.

Note that SDLC link protocol cannot load IP protocol, so you should remove all of the commands related with IP, such as delete interface IP address, before encapsulating SDLC.

6Configure SDLC Role

SDLC is a link layer protocol in the unbalanced mode. In another words, the connected equipment on the both ends does not have unequal priority. One of the parts is the primary station that plays the leading role and controls the whole connection process and its role is primary. The other part is the secondary station that is controlled in a passive mode and its role is secondary. Subscribers need to configure role for the interface encapsulated with SDLC protocol.

Please process the following configurations in the synchronous interface view.

Table 433 Configure SDLC role

Operation	Command
Configure SDLC role	sdlc status { primary secondary }
Delete SDLC role	undo sdlc status

SDLC role shall be configured according to the role of SDLC equipment connecting with this router. If SDLC equipment connecting with the interface is primary, the interface should be set to secondary. If the connected equipment is secondary, the interface should be set to primary.

Generally, the central IBM mainframes are primary, and terminal equipment is secondary, such as Unix host and ATM machine.

7Configure SDLC Virtual MAC Address

Originally, DLSw is designed for LLC2 type of protocol to establish the mapping relationship of virtual circuit through MAC address. Thus, you have to specify MAC address for SDLC virtual circuit in order to allow SDLC message to participate in