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bilbo
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Topic Author
Posts: 3
Joined: Tue Dec 21, 2021 2:15 pm

Packet loss on LACP, 2004, ROS7

Fri Feb 11, 2022 11:21 am

CCR2004-16G-2S+, ROS 7.1.2

MT is connected to Catalyst 4948 by LACP with 3 ethernet ports. Every 10-20 seconds there is a packet losses for a second or two. Management via separate ether port works good.
There is no any errors on ethernets and on LACP, both on MT and Catalyst. What's a problem and how to fix it? My 1016 and 1036 work fine with same Catalyst and same settings.


MT config:
/interface bonding
add arp=enabled arp-interval=100ms arp-ip-targets="" arp-timeout=auto disabled=no down-delay=0ms !forced-mac-address lacp-rate=30secs link-monitoring=mii \
    mii-interval=100ms min-links=0 mode=802.3ad mtu=1500 name=LACP primary=none slaves=ether14,ether15,ether16 transmit-hash-policy=layer-2 up-delay=0ms

/interface ethernet
set [ find default-name=ether14 ] advertise=10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full arp=enabled arp-timeout=auto auto-negotiation=yes \
    bandwidth=unlimited/unlimited disabled=no full-duplex=yes l2mtu=1596 loop-protect=default loop-protect-disable-time=5m loop-protect-send-interval=5s \
    mac-address=2C:C8:1B:D5:83:ED mtu=1500 name=ether6 orig-mac-address=2C:C8:1B:D5:83:ED rx-flow-control=off speed=1Gbps tx-flow-control=off
set [ find default-name=ether15 ] advertise=10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full arp=enabled arp-timeout=auto auto-negotiation=yes \
    bandwidth=unlimited/unlimited disabled=no full-duplex=yes l2mtu=1596 loop-protect=default loop-protect-disable-time=5m loop-protect-send-interval=5s \
    mac-address=2C:C8:1B:D5:83:EE mtu=1500 name=ether7 orig-mac-address=2C:C8:1B:D5:83:EE rx-flow-control=off speed=1Gbps tx-flow-control=off
set [ find default-name=ether16 ] advertise=10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full arp=enabled arp-timeout=auto auto-negotiation=yes \
    bandwidth=unlimited/unlimited disabled=no full-duplex=yes l2mtu=1596 loop-protect=default loop-protect-disable-time=5m loop-protect-send-interval=5s \
    mac-address=2C:C8:1B:D5:83:EF mtu=1500 name=ether8 orig-mac-address=2C:C8:1B:D5:83:EF rx-flow-control=off speed=1Gbps tx-flow-control=off
Catalyst config:

interface Port-channel3
 description CCR2004
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,8,11,12,107,188,193,199,888
 switchport mode trunk
 
 interface GigabitEthernet1/36
 description CCR2004
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,8,11,12,107,188,193,199,888
 switchport mode trunk
 channel-protocol lacp
 channel-group 3 mode active
 spanning-tree portfast
 spanning-tree bpdufilter enable
!
interface GigabitEthernet1/37
 description CCR2004
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,8,11,12,107,188,193,199,888
 switchport mode trunk
 channel-protocol lacp
 channel-group 3 mode active
 spanning-tree portfast
 spanning-tree bpdufilter enable
!
interface GigabitEthernet1/38
 description CCR2004
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,8,11,12,107,188,193,199,888
 switchport mode trunk
 no cdp enable
 channel-protocol lacp
 channel-group 3 mode active
 spanning-tree portfast
 spanning-tree bpdufilter enable
!
 
adcre
newbie
Posts: 27
Joined: Fri Dec 10, 2021 4:18 pm

Re: Packet loss on LACP, 2004, ROS7

Fri Feb 11, 2022 12:33 pm

Sometimes with some firewalls or routers connected to cisco switches I have to force speed and duplex on both sides interfaces to not have problems.

You could give it a try.

Best Regards,

Diego
 
mhugo
Member Candidate
Member Candidate
Posts: 179
Joined: Mon Sep 19, 2005 11:48 am

Re: Packet loss on LACP, 2004, ROS7

Tue Feb 15, 2022 2:16 am

Im seeing some packagedrops like this too on my 2004s. The ones with full BGP so feels like something in route updates is not fully optimized in ROS7 yet.

Your run any routing?
 
rooin
newbie
Posts: 47
Joined: Tue Feb 22, 2011 10:44 am

Re: Packet loss on LACP, 2004, ROS7

Wed Feb 16, 2022 11:51 pm

Not that this helps, but let it be known I am experiencing issues between all Mikrotik gear.
My environment was seeing extensive package loss in a CCR2004-16G-2S+ to a pair of CRS354s in a 2x2 MLAG configuration.
When I changed my configuration to a single interface the packet loss has gone away. Support recommended I upgrade to 7.3Beta16 as they claimed several bridge an LACP issues were resolved.
I am also seeing issues where I would make changes on the CRS354's, which required me to disable L3-HWO an I would start to see loop notices on the CCR2004 (only) an it would not stop until I would completely down the entire LACP group on the CCR. Not really ideal when I am trying to make this my core router.
I also have increased reports of Teams calls dropping or reporting poor internet connection. Which was not a problem when I was performing static VLAN routes on a quite old HP-5406zl.


I have not yet done the "upgrade" as suggested, so I cannot yet say if the beta will help resolve LACP issues.

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