HP VPN Firewall Appliances High Availability Configuration Guide

158
Ste
p
Command Remarks
2. Enable the trap function
globally.
snmp-agent trap enable [ standard
[ linkdown | linkup ] * ]
Optional.
By default, link state trapping is
enabled globally and on all
interfaces.
3. Enter aggregate interface
view.
• Enter Layer 2 aggregate interface or
subinterface view:
interface bridge-aggregation
{ interface-number |
interface-number.subnumber }
• Enter Layer 3 aggregate interface
view:
interface route-aggregation
interface-number
Use either command.
4. Enable link state traps for
the aggregate interface.
enable snmp trap updown
Optional.
Enabled by default.
Limiting the number of Selected ports for an aggregation group
The following matrix shows the feature and hardware compatibility:
Hardware Com
p
atibilit
y
F1000-A-EI/F1000-S-EI Yes
F1000-E No
F5000 Yes
F5000-S/F5000-C No
VPN firewall modules No
20-Gbps VPN firewall modules No
The bandwidth of an aggregate link increases along with the number of selected member ports. To avoid
congestion caused by an insufficient number of Selected ports on an aggregate link, set the minimum
number of Selected ports required for bringing up the specific aggregate interface.
This minimum threshold setting affects the aggregation state of both aggregation member ports and the
aggregate interface, as follows:
• All member ports change to the Unselected state and the link of the aggregate interface goes down,
when the number of member ports eligible for being selected is smaller than the minimum
threshold.
• When the minimum threshold is reached, the eligible member ports change to the Selected state,
and the aggregate interface link goes up.
By default, the maximum number of Selected ports allowed in an aggregation group depends on the
hardware capabilities of the member ports. After you manually configure the maximum number of
Selected ports in an aggregation group, the maximum number of Selected ports allowed in the
aggregation group is the lower value of the two upper limits.
You can configure redundancy between two ports using the following guideline: Assign two ports to an
aggregation group, and configure the maximum number of Selected ports allowed in the aggregation