HPE FlexNetwork MSR Series Comware 5 Layer 2 - Wan Access Configuration Guide

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To implement MP with DCC, use dialer interfaces. The following shows how MP operates after you
configure the ppp mp and dialer threshold commands on a dialer interface:
• When the ratio of traffic to bandwidth on a physical interface assigned to the dialer interface
exceeds the configured load threshold, DCC brings up another physical interface in the dialer
interface, and assigns these links to an MP bundle. If the physical interfaces are ISDN BRI or
PRI interfaces, DCC uses idle B channels on them to form an MP bundle.
• When the number of bundled links reaches the upper threshold specified by the max-bind-num
argument, DCC stops to bring up new links.
Some dial applications require multiple links carry services. To do so, configure the ppp mp
min-bind command to enable DCC to bring up multiple links when triggered to ensure minimum
bandwidth. MP operates in the following workflow:
1. DCC brings up the first link.
2. When the first link comes up, DCC checks whether the number of links in the MP bundle
reaches the lower limit specified by the min-bind-num argument. If not, the router brings up the
second link.
This process continues until the number of links in the MP bundle reaches the lower limit.
When MP is used with DCC, the dialer threshold, ppp mp max-bind, and ppp mp min-bind
commands must be configured in dialer interface view. When you configure other PPP commands,
perform the following configurations:
• In the C-DCC approach, configure PPP-related commands in dialer interface view.
• In the RS-DCC approach, configure PPP-related commands in dialer interface view at the
calling end and in physical dialup interface view at the called end. At the calling end, however,
configure the same PPP parameters on physical dialup interfaces as well to ensure reliable
PPP link negotiation.
Configuration guidelines
• Configure PPP commands on both dialer and physical interfaces to ensure reliable PPP link
negotiation.
• The dialer threshold 0 command voids the dialer timer idle command. DCC will bring up all
available links when triggered.
• Similar to the dialer threshold 0 command, the ppp mp min-bind command voids the dialer
timer idle command. When it is configured, DCC does not look at traffic size to bring up links for
MP bundling; however, links that are already up will be brought down due to timeout.
• Configure the dialer threshold command only at the calling end.
Configuration procedure
To configure MP for DCC:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter dialer interface view.
interface dialer
number N/A
3. Enable PPP on the dialer
interface.
link-protocol ppp
N/A
4. Enable MP.
ppp mp
By default, MP is disabled.
5. Set link load thresholds.
dialer threshold
traffic-percentage [
in-out
|
in
|
out
]
If the traffic-percentage argument
is set to 0, DCC will bring up all
available links when triggered.

HPE FlexNetwork MSR Series Specifications

General

Brand	HPE
Model	FlexNetwork MSR Series
Category	Network Router
Language	English