44
unicast-suppression
Use
unicast-suppression
to enable unknown unicast storm suppression and set the unknown
unicast storm suppression threshold.
Use
undo unicast-suppression
to disable unknown unicast storm suppression.
Syntax
unicast-suppression
{
ratio
|
pps max-pps
|
kbps max-kbps
}
undo
unicast-suppression
Default
Ethernet interfaces do not suppress unknown unicast traffic.
Views
Ethernet interface view
Predefined user roles
network-admin
Parameters
ratio
: Sets the unknown unicast suppression threshold as a percentage of the interface bandwidth.
The value range for this argument (in percentage) is 0 to 100. A smaller value means that less
unknown unicast traffic is allowed to pass through.
pps max-pps
: Specifies the maximum number of unknown unicast packets that the interface can
forward per second. The value range for the
max-pps
argument (in pps) is 0 to 1.4881 × the
interface bandwidth.
kbps max-kbps
: Specifies the maximum number of kilobits of unknown unicast traffic that the
Ethernet interface can forward per second. The value range for this argument (in kbps) is 0 to the
interface bandwidth.
Usage guidelines
The unknown unicast storm suppression feature limits the size of unknown unicast traffic to a
threshold on an interface. When the unknown unicast traffic on the interface exceeds this threshold,
the system discards packets until the unknown unicast traffic drops below this threshold.
Both the
storm-constrain
command and the
unicast-suppression
command can
suppress unknown unicast storms on a port. The
unicast-suppression
command uses the
chip to physically suppress unknown unicast traffic. It has less influence on the device performance
than the
storm-constrain
command, which uses software to suppress unknown unicast traffic.
For the unknown unicast traffic suppression result to be determined, do not configure both the
storm-constrain unicast
command and the
unicast-suppression
command on an
interface.
When you configure the suppression threshold in kbps, the actual suppression threshold might be
different from the configured one as follows:
•
If the configured value is smaller than 64, the value of 64 takes effect.
•
If the configured value is greater than 64 but not an integer multiple of 64, the integer multiple of
64 that is greater than and closest to the configured value takes effect.
To determine the suppression threshold that takes effect, see the prompts on the switch.
Examples
# Set the unknown unicast storm suppression threshold to 10000 kbps on GigabitEthernet 1/0/1.
<Sysname> system-view
Содержание SOHO IE4300
Страница 114: ...ii tftp client ipv6 source 41 tftp client source 41 tftp ipv6 42 tftp server acl 44 tftp server ipv6 acl 44...
Страница 285: ...i Contents Tcl commands 1 cli 1 tclquit 1 tclsh 2...
Страница 288: ...i Contents Python commands 1 exit 1 python 1 python filename 2...
Страница 291: ...i Contents Automatic configuration commands 1 autodeploy udisk enable 1...
Страница 323: ...25 Sysname Ten GigabitEthernet1 0 51 undo shutdown Related commands irf port...
Страница 396: ...i Contents Bulk interface configuration commands 1 display interface range 1 interface range 1 interface range name 3...
Страница 460: ...i Contents Port isolation commands 1 display port isolate group 1 port isolate enable 2 port isolate group 2...
Страница 465: ...ii stp vlan enable 55 vlan mapping modulo 55...
Страница 589: ...60 Examples Enable LLDP for automatic IP phone discovery Sysname system view Sysname voice vlan track lldp...
Страница 602: ...12 Related commands display mvrp statistics...
Страница 609: ...i Contents VLAN mapping commands 1 display vlan mapping 1 vlan mapping 2...
Страница 678: ...9 Related commands reset pppoe relay statistics...
Страница 846: ...i Contents Basic IP forwarding commands 1 display fib 1 ip forwarding table save 2...
Страница 1073: ...i Contents HTTP redirect commands 1 http redirect https port 1 http redirect ssl server policy 1...
Страница 1087: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1340: ...9 Sysname ipv6 route static default preference 120 Related commands display ipv6 routing table protocol...
Страница 1649: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1668: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1770: ...i Contents Time range commands 1 display time range 1 time range 1...
Страница 2026: ...34 Related commands display mac authentication...
Страница 2028: ...ii...
Страница 2143: ...i Contents User profile commands 1 display user profile 1 user profile 2...
Страница 2308: ...61 ipsec transform set...
Страница 2473: ...i Contents TCP attack prevention commands 1 tcp anti naptha enable 1 tcp check state interval 1 tcp state 2...
Страница 2531: ...i Contents SAVI commands 1 ipv6 savi down delay 1 ipv6 savi log enable 1 ipv6 savi strict 2...
Страница 2534: ...3 Sysname ipv6 savi strict Related commands ipv6 verify source...
Страница 2541: ...i Contents Crypto engine commands 1 display crypto engine 1 display crypto engine statistics 1 reset crypto engine statistics 3...
Страница 2545: ...i Contents FIPS commands 1 display crypto version 1 display fips status 1 fips mode enable 2 fips self test 4...
Страница 2791: ...14 Sysname track 1 Related commands delay display track...
Страница 2939: ...9 sntp authentication keyid sntp reliable authentication keyid...
Страница 2967: ...27 Related commands apply poe profile poe enable poe max power interface view poe priority...
Страница 3240: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 3263: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...