Adding and removing LLT links


Adding and removing LLT links
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You can use the lltconfig command to add or remove LLT links when LLT is running.

See the lltconfig(1M) manual page for more details.

Note:

When you add or remove LLT links, you need not shut down GAB or the high availability daemon, had. Your changes take effect immediately, but are lost on the next restart. For changes to persist, you must also update the /etc/llttab file.

To add LLT links

Depending on the LLT link type, run the following command to add an LLT link:

For ether link type:

# lltconfig -t devtag -d device 
[-b ether ] [-s SAP] [-m mtu]

For UDP link type:

# lltconfig -t devtag -d device 
-b udp [-s port] [-m mtu]
-I IPaddr -B bcast

For UDP6 link type:

# lltconfig -t devtag -d device 
-b udp6 [-s port] [-m mtu]
-I IPaddr -B mcast

Where:

devtag	Tag to identify the link
device	Network device path of the interface For link type ether, the path is followed by a colon (:) and an integer which specifies the unit or PPA used by LLT to attach. For link types udp and udp6, the device is the udp and udp6 device path respectively.
bcast	Broadcast address for the link type udp
mcast	Multicast address for the link type udp6
IPaddr	IP address for link types udp and udp6
SAP	SAP to bind on the network links for link type ether
port	Port for link types udp and udp6
mtu	Maximum transmission unit to send packets on network links

For example:

For ether link type:

# lltconfig -t en3 -d /dev/dlpi/en:3 -s 0xcafe -m 1500

For UDP link type:

# lltconfig -t link1 -d /dev/xti/udp -b udp 
-I 192.1.2.255 -B 192.1.2.255

For UDP6 link type:

# lltconfig -t link1 -d /dev/xti/udp6 
-b udp6 -I 2000::1

To remove an LLT link

Run the following command to remove a network link that is configured under LLT:
```
# lltconfig -u devtag
```

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