https://www.cisco.com/c/en/us/td/docs/routers/asr920/configuration/guide/lanswitch/16-8-1/b-lanswitch-etherchannel-xe-16-8-1-asr920.pdf
Hi All,
I have been having some issues with LACP/Port-channel Load Balancing on a 2 Gigabit etherchannel on an ASR920 4-port and ASR920 24-port.
Both of which are running IOS XE 16.9.5. I have tried setting up the Port-channel load balancing and leaving it default (src-mac) and gone through all the other types of load balancing and tried a couple of combinations of each on the individual routers, but mostly I have tried keeping the same on both sides of the port-channels.
Here are my configs for each side:
4-port (simulates the edge)
interface Port-channel3
description LAG to Transport 920 Ports
mtu 1998
ip address 11.12.1.90 255.255.255.252
no ip redirects
no ip unreachables
no ip proxy-arp
end
interface TenGigabitEthernet0/0/3
description lag to transport te0/0/13
mtu 1998
no ip address
lacp port-priority 32601
channel-group 3 mode active
end
interface TenGigabitEthernet0/0/2
description lag to transport te0/0/12
mtu 1998
no ip address
lacp port-priority 32600
channel-group 3 mode active
end
sh run | section port-channel
port-channel load-balance-hash-algo src-dst-mac
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
3 Po3(RU) LACP Te0/0/2(bndl) Te0/0/3(bndl)
RU - L3 port-channel UP State
SU - L2 port-channel UP state
P/bndl - Bundled
S/susp - Suspended
Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
-----------------------------------------------------------------------------------------------------------------
* GigabitEthernet0/0/0 0 0 0 0 664146000 56335 0 0 0
GigabitEthernet0/0/1 0 0 0 0 0 0 0 0 0
* Te0/0/2 0 0 0 0 0 0 663789000 56317 0
* Te0/0/3 0 0 0 0 0 0 0 0 0
Here is the 24-port:
interface Port-channel3
description LAG to Edge 920 Ports 2 & 3
mtu 1998
ip address 11.12.1.89 255.255.255.252
no keepalive
end
interface TenGigabitEthernet0/0/13
description lag to edge te0/0/3
mtu 1998
no ip address
lacp port-priority 32601
channel-group 3 mode active
end
interface TenGigabitEthernet0/0/12
description lag to edge te0/0/2
mtu 1998
no ip address
lacp port-priority 32600
channel-group 3 mode active
end
EtherChannel Load-Balancing Method:
Global LB Method: flow-based
LB Algo type: Source MAC
Port-Channel: LB Method
Port-channel3 : flow-based (Source MAC)
Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
-----------------------------------------------------------------------------------------------------------------
* Te0/0/12 0 0 0 0 666155000 56531 0 0 0
* Te0/0/13 0 0 0 0 67000 5 5000 5 0
Te0/0/14 0 0 0 0 0 0 0 0 0
Te0/0/15 0 0 0 0 0 0 0 0 0
* GigabitEthernet0 0 0 0 0 1000 6 0 0 0
BDI10 0 0 0 0 0 0 0 0 0
* Loopback0 0 0 0 0 0 0 0 0 0
* Port-channel3 0 0 0 0 666222000 56536 5000 6 0
I am pinging across the IPs from the edge to the transport's /30 on a public that I am hosting from the edge side. I am hosting a DHCP for public's on the edge that can ping the public (these are not the real IPs in the post), but they do have readability for my testing.
I am generating about 650Mbps of traffic accross the gi0/0/0 link that I am connected on via the edge router that I wish would split into the two active etherchannel members, but it will only go along one or the other.
Any advice is welcomed!
