BelAir20E User Guide
Using Layer 2 Tunnels
April 2, 2012
Confidential
Document Number BDTM02201-A01 Standard
If you specify a DSCP value, then it appears in the DSCP/TOS bits of any L2TP
or PPP control packets.
Enabling Backhaul
Protection for Tunnels
/protocol/te-<eng>/set protection-backhaul {enabled|disabled}
[egress <interface>]
Use this command to inform the tunnel engine that the node uses egress
protection as described in
“Egress Protection” on page 122
The
egress
parameter applies to BelAir100SN only. It species whether egress is
through the cable modem (cm-9-1) or the Ethernet interface (eth-1-1).
The default setting is
disabled
. Before using this command, make sure all
requirements described in
“Egress Protection” on page 122
are met.
When you enable or disable backhaul protection for tunnels, you must:
1 Issue the
config-save
command. See
“Saving your Changes” on page 21
for
details.
2 Reboot the node. See
“Activating a Software Load” on page 201
for details.
Bandwidth Limits
/protocol/te-<eng>/show limits
/protocol/te-<eng>/set tunnel <index> bandwidth-limit
upstream <bits-per-second>
downstream <bits-per-second>
The
set tunnel bandwidth-limit
command lets you specify for a particular tunnel
the maximum upstream and downstream transmission rates.
The <index> parameter is used for easy reference when using other
commands. It can be displayed with the
/protocol/te-<eng>/show config
command.
The
show limit
command displays the upstream and downstream settings for
the current tunnel.
Example
/protocol/te-syst# show limits
N Us limit Ds limit
== ========== ==========
1 0 0
2
3
4
5