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Gigabit Ethernet Port Link Aggregation
To fill the gab between 1 and 10Gbit/sec ports, AtlantaIX also offers aggregated Gigabit Ethernet ports. Link aggregation allows for bundling of two to four Gigabi Ethernet links into one virtual channel towards the shared fabirc. Link aggregation is also known as EtherChannel, Port Channel, port aggregation (PAgP) or trunking, depending on the vendor involved.
Got a Cisco Catalyst 6xxx? Try this....
interface GigabitEthernet1/1
description AtlantaIX Link 1
no ip address
no ip redirects
no ip proxy-arp
no keepalive
no cdp enable
channel-group 1 mode on
!
interface GigabitEthernet2/1
description AtlantaIX Link 2
no ip address
no ip redirects
no ip proxy-arp
no keepalive
no cdp enable
channel-group 1 mode on
!
interface Port-channel1
description AtlantaIX aggregated link
ip address 198.32.132.## 255.255.255.0
no ip redirects
no ip proxy-arp
no keepalive
!
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Got a Cisco GSR?
!
interface Port-channel1
description AtlantaIX Aggregated Link
ip address 198.32.132.## 255.255.255.0
no ip redirects
no ip directed-broadcast
no ip proxy-arp
channel-group minimum active 1
no channel-group bandwidth control-propagation
hold-queue 150 in
!
interface GigabitEthernet1/1/1
description AtlantaIX Link 1
no keepalive
no negotiation auto
channel-group 1
no cdp enable
!
interface GigabitEthernet1/1/2
description AtlantaIX Link 2
no keepalive
no negotiation auto
channel-group 1
no cdp enable
!
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Juniper M-Series can be setup like this...
---
[edit]
admin@junix# show chassis
aggregated-devices {
ethernet {
device-count 1;
}
}
---
[edit]
admin@junix# show interfaces ge-2/1/0
gigether-options {
802.3ad ae0;
}
[edit]
admin@junix# show interfaces ge-3/1/0
gigether-options {
802.3ad ae0;
}
---
[edit]
admin@junix# show interfaces ae0
description "AtlantaIX";
unit 0 {
family inet {
filter {
input AtlantaIX-in;
output AtlantaIX-out;
}
address 198.32.132.##/24;
}
}
---
routing-options {
autonomous-system ######;
forwarding-table {
export [ load-balance ];
}
}
policy-options {
policy-statement load-balance {
then {
load-balance per-packet;
}
}
}
forwarding-options {
hash-key {
family inet {
layer-3;
layer-4;
}
}
}
---
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