





SNA Over LLC2
The Passport 4400 unit's Ethernet port should already be configured for operation over the LAN. To enable SNA over LLC2, proceed as follows:
- Add RFC 1490 BAN encapsulation to the Ethernet (physical) port:
CLI> add sna llc port
| Parameters | Range of Values | Required Action |
| <IfIndex> | Integer (1..255) | Enter the IfIndex of the physical Ethernet port. |
| <Type> | ban | enet | Select enet. |
Example:
CLI> add sna llc port 1 enet
- Assuming the frame relay WAN port is already configured with the necessary tunnel (netlink), you only need to add a virtual circuit to carry the SNA over LLC2 traffic across the WAN. Perform either the PVC, SPVC, or SVC procedure, depending on the type of virtual circuit you need to establish.
PVC
If the remote end is a FRAD, you must establish a PVC (SNA traffic is carried across the WAN in an RFC 1490 BAN PVC). Use the following commands to configure the PVC connection:
CLI> add fr port virtualPort
| Parameter | Range of Values | Required Action |
| <IfIndex> | Integer (1..255) | Enter an available IfIndex for the virtual port to be used for the PVC. |
| <Number> | Integer (0..254) | Enter the interface number you want to assign to this virtual port (the PPA number). (show port if will give you a list of ifnumbers already in use.) |
CLI> add fr port pvcLANData
| Parameter | Range of Values | Required Action |
| <IfIndex> | Integer (1..255) | Enter the IfIndex of the virtual port. |
| <NetlinkIfIndex> | Integer (1..255) | Enter the DLCI number assigned to the unit for user traffic. If PANL is used, specify the IfIndex of the tunnel. |
Example command sequence:
CLI> add fr port virtualPort 15 2
CLI> add fr port pvcLANData 15 32
SPVC
If the remote end is a Passport 6400 unit, you can use an SPVC. For SNA traffic carried across the WAN in a PANL SPVC, use the existing pre-defined WAN port (IfIndex 153) and DTE-PANL tunnel (IfIndex 149). Then use the following existing commands to complete the configuration of the SPVC connection:
CLI> add fr port virtualPort
| Parameter | Range of Values | Required Action |
| <IfIndex> | Integer (1..255) | Enter an available IfIndex for the virtual port to be used for the SPVC. |
| <Number> | Integer (0..254) | Enter the interface number you want to assign to this virtual port (the PPA number). (show port if will give you a list of ifnumbers already in use.) |
CLI> add fr port spvcLANData
| Parameter | Range of Values | Required Action |
| <VirtualPortIfIndex> | Integer (1..255) | Enter the IfIndex of the virtual port. |
| <RemoteNetDLCI> | Integer (16..991) | Enter the remote net DLCI. |
| <SVCDNA> | Frame relay DNA (as a quoted string, 1..34) | Enter the DNA as a quoted string, according to the convention below. |
| <ConnectType> | slave | master | Select either master or slave. |
When configuring the SPVC DNA, the LAN service digit (1) is used. Thus, the DNA specified must conform to the following convention:
<remote prefix DNA> + <1> + <remote virtual port number>
Example command sequence:
CLI> add fr port virtualPort 15 2
CLI> add fr port spvcLANData 15 32 "32115" master
SVC
If the remote end is a Passport 4400 unit, you can use an SVC. For SNA traffic carried across the WAN in a PANL SVC, use the existing pre-defined WAN port (IfIndex 153) and DTE-PANL tunnel (IfIndex 149). Then use the following existing commands to complete the configuration of the SVC connection:
CLI> add fr port virtualPort
| Parameter | Range of Values | Required Action |
| <IfIndex> | Integer (1..255) | Enter an available IfIndex for the virtual port to be used for the SVC. |
| <Number> | Integer (0..254) | Enter the interface number you want to assign to this virtual port (the PPA number). (show port if will give you a list of ifnumbers already in use.) |
CLI> add fr port svcLANData
| Parameter | Range of Values | Required Action |
| <IfIndex> | Integer (1..255) | Enter the IfIndex of the virtual port. |
| <DNA> | Frame relay DNA (as a quoted string, 1..34) | Enter the frame relay DNA as a quoted string. The DNA must follow the convention described below. |
| <TxPriority> | Integer (0..15) | Enter the priority required for transmissions across this virtual port. |
The DNA specified must conform to the following convention:
<remote prefix DNA> + <1> + <remote virtual port number>
Example command sequence:
CLI> add fr port virtualPort 15 2
CLI> add fr port svcLANData 15 "32115" 0
- Add RFC 1490 BAN encapsulation to the virtual port (whether PVC, SPVC, or SVC):
CLI> add sna llc port
| Parameters | Range of Values | Required Action |
| <IfIndex> | Integer (1..255) | Enter the IfIndex of the virtual port. |
| <Type> | ban | enet | Select ban. |
Example:
CLI> add sna llc port 20 ban
- Save the configuration and reset the unit:
CLI> save configuration update
CLI> reset system current reset
End of procedure.