Issue with loopback interface with remote mirroring

[Marek_T]

Hi all.
I configured remote mirroring according to "EXOS_User_Guide_16_1".
Remote mirror seems to work but i got BPDU error on intereface assigned as loopback for mirroring.
mirroring config:

create mirror "voip-span"
configure mirror voip-span to port-list 51,52 loopback-port 48 remote-tag 1000
configure mirror voip-span add vlan "PHONE" ingress
enable mirror voip-span

error message:

02/25/2016 11:21:24.02 : Port=48: Recv own loop back packet from same port
02/25/2016 11:21:26.01 : Port=48: Recv own loop back packet from same port
02/25/2016 11:21:28.02 : Port=48: Recv own loop back packet from same port

i got this on every switch i use as mirror source.

switch:
System Type: X460G2-48p-10G4
Image: ExtremeXOS version 16.1.1.4 by release-manager

During that error i got disruption with connectivity - every few pings are lost.
How can i resolve that ? Any ideas ?

[Henrique]

Hi Marek, are you using STP for remote-mirroring to have redundancy as described in the EXOS UserGuide? Can you please share the topology?

Try to remove the loopback port from S0 STPD using the command below and please share the results:

configure s0 delete vlan internalMirrorLoopback_0 ports 48

[Marek_T]

Hello.
No nothing is configured. I believe STP is added by mirroring configuration.

# show vlan ports 48
Error: The specified ports are not members of any VLANs.

# show "s0" ports 48
Port Mode State Cost Flags Priority Port ID Designated Bridge
48 802.1D FORWARDING 20000 eDap-w---- 128 8030 80:00:00:04:96:99:83:e8

Total Ports: 1

------------------------- Flags: ----------------------------
1: e=Enable, d=Disable
2: (Port role) R=Root, D=Designated, A=Alternate, B=Backup, M=Master
3: (Config type) b=broadcast, p=point-to-point, e=edge, a=auto
4: (Oper. type) b=broadcast, p=point-to-point, e=edge
5: p=proposing, a=agree
6: (partner mode) d = 802.1d, w = 802.1w, m = mstp
7: i = edgeport inconsistency
8: S = edgeport safe guard active
s = edgeport safe guard configured but inactive
8: G = edgeport safe guard bpdu restrict active in 802.1w and mstp
g = edgeport safe guard bpdu restrict active in 802.1d
9: B = Boundary, I = Internal
10: r = restricted role, t = active role

--------------------------------------------------------------------------
that is avlan that created itself when remote mirror was added

# show vlan "internalMirrorLoopback_0"
VMAN Interface for mirroring with name internalMirrorLoopback_0 created by user
Admin State: Enabled Tagging:Untagged (Internal tag 4092)
Description: None
Virtual router: VR-Default
IPv4 Forwarding: Disabled
IPv4 MC Forwarding: Disabled
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: s0(Enabled,Auto-bind)
Protocol: Match all unfiltered protocols
Loopback: Disabled
NetLogin: Disabled
OpenFlow: Disabled
TRILL: Disabled
QosProfile: None configured
Egress Rate Limit Designated Port: None configured
Flood Rate Limit QosProfile: None configured
Ports: 3. (Number of active ports=3)
Untag: *48L, *51, *52
Flags: (*) Active, (!) Disabled, (g) Load Sharing port
(b) Port blocked on the vlan, (m) Mac-Based port
(a) Egress traffic allowed for NetLogin
(u) Egress traffic unallowed for NetLogin
(t) Translate VLAN tag for Private-VLAN
(s) Private-VLAN System Port, (L) Loopback port
(x) VMAN Tag Translated port
(G) Multi-switch LAG Group port
(H) Dynamically added by MVRP
(D) TRILL Designated, (A) TRILL Appointed Forwarder
(I) Dynamically added by IDM
(U) Dynamically added uplink port
(V) Dynamically added by VM Tracking


Port 51,52 are uplink port to other switches.

--
Marek

[Henrique]

Hi Marek,

Is there any configuration (Vlan, STP, etc) in the loopback port 48?