BigIron RX Series Configuration Guide
313
53-1001810-01
Other VLAN features
11
Flow based MAC learning
In this release, the cpu-flooding command that disables hardware flooding of unknown unicast,
multicast, and broadcast packets on all VLAN has been added. When using this command,
unknown unicast packets will go to the CPU and will be CPU forwarded. Source MAC learning will be
done by CPU. The first packet for unknown DA will go to the CPU and CPU will program the hardware
on demand. Any supplemental packets will be forwarded by the hardware.This will allow MAC
learning only where necessary and at a system level to allow more than 16k MACs. In addition, a
MAC will be learned only on the port or packet processor it was received.
Enabling CPU flooding
To enable CPU based flooding of unknown unicast, broadcast and multicast packets, enter the
following command at the global configuration level.
BigIron RX
(config)# cpu-flooding
To enable flow based MAC learning and CPU flooding for unknown unicast packets only, enter the
following command at the global configuration level.
BigIron RX
(config)# cpu-flooding unknown-unicast
To enable CPU based flooding for broadcast and multicast packets, enter the following command at
the global configuration level.
BigIron RX
(config)# cpu-flooding multicast
Syntax: [no] cpu-flooding [multicast] [unknown-unicast]
Use the multicast parameter to specify CPU flooding for broadcast and multicast packets.
Use the unknown-unicast parameter to specify CPU flooding for unknown unicast packets only.
NOTE
This command does not erase any multicast or unknown-unicast flooding configuration. If this
command is enabled, then it supersedes the per-vlan configuration.
Configuring uplink ports within a port-based VLAN
You can configure a subset of the ports in a port-based VLAN as uplink ports. When you configure
uplink ports in a port-based VLAN, the device sends all broadcast and unknown-unicast traffic from
a port in the VLAN to the uplink ports, but not to other ports within the VLAN. Thus, the uplink ports
provide tighter broadcast control within the VLAN.
For example, if two ports within a port-based VLAN are Gigabit ports attached to the network and
the other ports in the VLAN are 10/100 ports attached to clients, you can configure the two ports
attached to the network as uplink ports. In this configuration, broadcast and unknown-unicast
traffic in the VLAN does not go to all ports in the VLAN. The traffic goes only to the uplink ports.
The clients on the network do not receive broadcast and unknown-unicast traffic from other ports,
including other clients.
To configure a port-based VLAN containing uplink ports, enter commands such as the following.
BigIron RX
(config)# vlan 10 by port
BigIron RX
(config-vlan-10)# untag ethernet 1/1 to 1/24
BigIron RX
(config-vlan-10)# untag ethernet 2/1 to 2/2
BigIron RX
(config-vlan-10)# uplink-switch ethernet 2/1 to 2/2
Содержание Brocade DCX
Страница 40: ...xl BigIron RX Series Configuration Guide 53 1001810 01 ...
Страница 72: ...lxxii BigIron RX Series Configuration Guide 53 1001810 01 ...
Страница 88: ...16 BigIron RX Series Configuration Guide 53 1001810 01 Searching and filtering output 1 ...
Страница 300: ...228 BigIron RX Series Configuration Guide 53 1001810 01 Displaying IP information 7 ...
Страница 318: ...246 BigIron RX Series Configuration Guide 53 1001810 01 Deploying a LAG 8 ...
Страница 418: ...346 BigIron RX Series Configuration Guide 53 1001810 01 SuperSpan 12 ...
Страница 482: ...410 BigIron RX Series Configuration Guide 53 1001810 01 MRP CLI example 14 ...
Страница 506: ...434 BigIron RX Series Configuration Guide 53 1001810 01 Displaying VSRP information 15 ...
Страница 566: ...494 BigIron RX Series Configuration Guide 53 1001810 01 QoS for the oversubscribed 16 x 10GE modules 18 ...
Страница 582: ...510 BigIron RX Series Configuration Guide 53 1001810 01 Viewing Layer 2 ACLs 20 ...
Страница 634: ...562 BigIron RX Series Configuration Guide 53 1001810 01 Troubleshooting ACLs 21 ...
Страница 642: ...570 BigIron RX Series Configuration Guide 53 1001810 01 Trunk formation 22 ...
Страница 746: ...674 BigIron RX Series Configuration Guide 53 1001810 01 Displaying RIP filters 24 ...
Страница 808: ...736 BigIron RX Series Configuration Guide 53 1001810 01 Displaying OSPF information 25 ...
Страница 926: ...854 BigIron RX Series Configuration Guide 53 1001810 01 Generalized TTL security mechanism support 26 ...
Страница 938: ...866 BigIron RX Series Configuration Guide 53 1001810 01 Displaying MBGP information 27 ...
Страница 950: ...878 BigIron RX Series Configuration Guide 53 1001810 01 Using secure copy 28 ...
Страница 988: ...916 BigIron RX Series Configuration Guide 53 1001810 01 Clearing IS IS information 29 ...
Страница 998: ...926 BigIron RX Series Configuration Guide 53 1001810 01 Configuring BFD for the specified protocol 30 ...
Страница 1014: ...942 BigIron RX Series Configuration Guide 53 1001810 01 Displaying multi device port authentication information 31 ...
Страница 1054: ...982 BigIron RX Series Configuration Guide 53 1001810 01 Sample 802 1x configurations 33 ...
Страница 1072: ...1000 BigIron RX Series Configuration Guide 53 1001810 01 IP source guard 35 Syntax show ip source guard ethernet port num ...
Страница 1108: ...1036 BigIron RX Series Configuration Guide 53 1001810 01 sFlow 39 ...
Страница 1190: ...1118 BigIron RX Series Configuration Guide 53 1001810 01 Displaying RIPng information 44 ...
Страница 1270: ...1198 BigIron RX Series Configuration Guide 53 1001810 01 Displaying ACLs 47 ...
Страница 1310: ...1238 BigIron RX Series Configuration Guide 53 1001810 01 Displaying OSPFv3 information 48 ...
Страница 1382: ...1310 BigIron RX Series Configuration Guide 53 1001810 01 Commands That Require a Reload D ...
Страница 1435: ...BigIron RX Series Configuration Guide 1363 53 1001810 01 VSRP E ...
Страница 1436: ...1364 BigIron RX Series Configuration Guide 53 1001810 01 VSRP E ...