Cisco 3750 and HP Switches GbE2c L2/L3 (lacp and trunking)

martin.germano · ‎12-19-2017

Hi all, we got Cisco 3750 and HP Switches GbE2c L2/L3 from Blade with trunk and LACP. Is working, but i see in the bandwith graph more traffic one an interface than the other one. ¿No load balacing?

On Cisco 3750

interface

interface GigabitEthernet1/0/3
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan *** some vlans
 switchport mode trunk
 channel-protocol lacp
 channel-group 3 mode active
end

Current configuration : 224 bytes
!
interface GigabitEthernet2/0/3
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan *** some vlans
 switchport mode trunk
 channel-protocol lacp
 channel-group 3 mode active
end


lacp

Partner's information:

                  LACP port                        Admin  Oper   Port    Port
Port      Flags   Priority  Dev ID          Age    key    Key    Number  State
Gi1/0/3   FA      32768     MACMACMAC  13s    0x0    0x3    0x14    0x3F  
Gi2/0/3   FA      32768     MACMACMAC   8s    0x0    0x3    0x15    0x3F

On HP GbE2c

interface

interface GigabitEthernet 20
    lacp mode active
    lacp key 3
!
interface GigabitEthernet 21
    lacp mode active
    lacp key 3


Portchannel

PortChannel 13: Enabled
Protocol - LACP
Port State:
 20: CIST   forwarding
     STG  1 forwarding
     STG  2 forwarding
     STG  3 forwarding
 21: CIST   forwarding
     STG  1 forwarding
     STG  2 forwarding
     STG  3 forwarding

Any ideas about what's going on?

Thanks

Martín.

PS: Here is the "debug lacp all" output (i'm trying to understand what it means)

14675125: Dec 19 13:27:33.338 UTC: LACP: lacp_p(Gi1/0/3) timer stopped
14675126: Dec 19 13:27:33.338 UTC: LACP: lacp_p(Gi1/0/3) expired
14675127: Dec 19 13:27:33.338 UTC:     lacp_ptx Gi1/0/3 - ptx: during state FAST_PERIODIC, got event 3(pt_expired)
14675128: Dec 19 13:27:33.338 UTC: @@@ lacp_ptx Gi1/0/3 - ptx: FAST_PERIODIC -> PERIODIC_TX
14675129: Dec 19 13:27:33.338 UTC: LACP: Gi1/0/3 lacp_action_ptx_fast_periodic_exit entered
14675130: Dec 19 13:27:33.338 UTC: LACP: lacp_p(Gi1/0/3) timer stopped
14675131: Dec 19 13:27:33.338 UTC: LACP: Gi1/0/3 lacp_action_ptx_periodic_tx entered
14675132: Dec 19 13:27:33.338 UTC: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
14675133: Dec 19 13:27:33.338 UTC: LACP: lacp_send_lacpdu: (Gi1/0/3) About to send the 110 LACPDU
14675134: Dec 19 13:27:33.338 UTC: LACP :lacp_bugpak: Send LACP-PDU packet via Gi1/0/3
14675135: Dec 19 13:27:33.338 UTC: LACP : packet size: 124
14675136: Dec 19 13:27:33.338 UTC: LACP: pdu: subtype: 1, version: 1
14675137: Dec 19 13:27:33.338 UTC: LACP: Act: tlv:1, tlv-len:20, key:0x3, p-pri:0x8000, p:0x104, p-state:0x3D,
s-pri:0x1, s-mac:649e.f3ce.4800
14675138: Dec 19 13:27:33.338 UTC: LACP: Part: tlv:2, tlv-len:20, key:0x3, p-pri:0x8000, p:0x14, p-state:0x3F,
s-pri:0x1, s-mac:6cae.8b9f.2d00
14675139: Dec 19 13:27:33.338 UTC: LACP: col-tlv:3, col-tlv-len:16, col-max-d:0x8000 
14675140: Dec 19 13:27:33.338 UTC: LACP: term-tlv:0 termr-tlv-len:0
14675141: Dec 19 13:27:33.338 UTC: LACP: lacp_write: LACP 124 bytes out Gi1/0/3 
14675142: Dec 19 13:27:33.338 UTC:     lacp_ptx Gi1/0/3 - ptx: during state PERIODIC_TX, got event 4(short_timeout)
14675143: Dec 19 13:27:33.338 UTC: @@@ lacp_ptx Gi1/0/3 - ptx: PERIODIC_TX -> FAST_PERIODIC
14675144: Dec 19 13:27:33.338 UTC: LACP: Gi1/0/3 lacp_action_ptx_fast_periodic entered
14675145: Dec 19 13:27:33.338 UTC: LACP: timer lacp_p_f(Gi1/0/3) started with interval 1000.
14675146: Dec 19 13:27:33.363 UTC: LACP: lacp_t(Gi1/0/3) timer stopped
14675147: Dec 19 13:27:33.363 UTC: LACP: lacp_t(Gi1/0/3) expired