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balancing link


Good afternoon,In a client must perform a link balancing between two locations. The interlinking between them, atualemente, is performed through radio (Radwin), however the client requests to be balanced (50% and 50%) the traffic with an optical fiber. The port is gigabit and Fibre is 100.
What would be the best possible way?
LACP L2?
Model: X440-24t
View: 15.2.1.5

Thank you

24 replies

Userlevel 6
Hello Felipe,

The ports will not equally load balance across a LAG. You can try tweaking the algorithm to see what the output is but this is a trial and error process.
Userlevel 6
Hi Felipe,

For Link Aggregation/LACP/802.3ad both ports must belong to the same vlans + both ports must be the same type and same speed.

It seems that you want to balance the traffic between 2 different ports using 2 different vlans. Am I correct?

If so, then you should have routing configuration to accomplish this as follows:

1. Lets say you want to balance between Gateway1 and Gateway2
2. You should have 2 routes to the same destination using both Gateways (1 route pointing to gw1 and another route pointing to gw2) and both routes must have the same metric/cost
3. If #1 and #2 are true than use the command "enable iproute sharing"

Please provide us more details about your scenario so we can guide you accordingly
Userlevel 6
Henrique wrote:

Hi Felipe,

For Link Aggregation/LACP/802.3ad both ports must belong to the same vlans + both ports must be the same type and same speed.

It seems that you want to balance the traffic between 2 different ports using 2 different vlans. Am I correct?

If so, then you should have routing configuration to accomplish this as follows:

1. Lets say you want to balance between Gateway1 and Gateway2
2. You should have 2 routes to the same destination using both Gateways (1 route pointing to gw1 and another route pointing to gw2) and both routes must have the same metric/cost
3. If #1 and #2 are true than use the command "enable iproute sharing"

Please provide us more details about your scenario so we can guide you accordingly

To piggy back off what Henrique said, ip route sharing will act just like a lag in a sense it wont balance the traffic perfectly but will hash it out one or the other based on an algorithm.
Userlevel 7
Hello Felipe,

load sharing between a 1Gbps and a 100Mbps link can create performance problems if more than 100Mbps of traffic is sent to the slower link. The 1Gbps link might still have (a lot of) capacity left, but the 100Mbps link is saturated and will drop traffic. Using just the 1Gbps link (with the 100Mbps link as backup) should work much better.

If both connections allow the same speed of 100Mbps or less, you can configure the 1Gbps port to use 100Mbps and use port sharing (LAG) or routing with ECMP (route sharing).

Erik
Thank you all!However, reviewing the customer's design, I found that the connection via Radwin is not direct, with a third on the way Extreme x440 (Below the drawing).
I believe that this case will not be possible to achieve this balance, remembering that this whole network is Layer 2.

Userlevel 6
Hi Felipe,

Since LAG is enabled in the same source/destination switches, that would work if you had a second direct link between "Sede X440" and "Garagem X440".

I'm wondering about using MLAG. The Peers would be between both X440 in the right and a LAG from HSU to both MLAG peers.

Please take a look in the article below (consider the server in the diagram as the "HSU"):

https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-configure-MLAG-in-Extreme-switches
Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?
Userlevel 6
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Hi Felipe, this feature allows traffic balancing + redundancy (if an MLAG port goes down).

When enabling the LAG in the HSU you have some hashing options which will help with traffic load balancing.

To confirm that you should use a traffic generator with random/multiple src/dst ips to easily see the counters incrementing for both MLAG ports.

You can use "show ports utilization" (you can press spacebar to alternate among "pps, bps or %" views)

Could you please share the Vlan and MLAG configuration and diagram with port numbers?
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Henrique,
Veja se são estas as informações que você pediu:

__________________________________________________________________

configure mlag ports convergence-control fastcreate mlag peer "sede"
configure mlag peer "sede" ipaddress 198.51.100.1
enable mlag port 1 peer "sede" id 100

_ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __

Port: 15 Virtual-router: VR-Default
Type: UTP
Random Early drop: Unsupported
Admin state: Enabled with auto-speed sensing auto-duplex
Link State: Active, 100Mbps, full-duplex
Link Ups: 6 Last: Thu Apr 28 10:49:39 2016
Link Downs: 5 Last: Thu Apr 28 10:49:12 2016

VLAN cfg:
Name: gerencia, 802.1Q Tag = 2041, MAC-limit = No-limit, Virtual router: VR-Default
Name: isc, 802.1Q Tag = 10, MAC-limit = No-limit, Virtual router: VR-Default
STP cfg:

Protocol:
Trunking: Load sharing is not enabled.
Multi-switch LAG: Inter-Switch Connection Port
_ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __

Multi-switch Link Aggregation Peers:
MLAG Peer : sede
VLAN : isc Virtual Router : VR-Default
Local IP Address : 198.51.100.2 Peer IP Address : 198.51.100.1
MLAG ports : 1 Tx-Interval : 1000 ms
Checkpoint Status : Up Peer Tx-Interval : 1000 ms
Rx-Hellos : 4589 Tx-Hellos : 15996
Rx-Checkpoint Msgs: 456 Tx-Checkpoint Msgs: 471
Rx-Hello Errors : 0 Tx-Hello Errors : 0
Hello Timeouts : 2 Checkpoint Errors : 0
Up Time : 0d:0h:43m:0s Peer Conn.Failures: 2
Local MAC : 00:04:96:34:93:31 Peer MAC : 00:04:96:36:96:49
Config'd LACP MAC : None Current LACP MAC : 00:04:96:34:93:31

_ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __

Local Local Remote
MLAG Local Link Remote Peer Fail Fail
Id Port State Link Peer Status Count Count
================================================================================
100 1 A Up sede Up 0 0
================================================================================
Local Link State: A - Active, D - Disabled, R - Ready, NP - Port not present
Remote Link : Up - One or more links are active on the remote switch,
Down - No links are active on the remote switch,
N/A - The peer has not communicated link state for this MLAG
port

Number of Multi-switch Link Aggregation Groups : 1
Convergence control : Fast

__________________________________________________________________

configure mlag ports convergence-control fastcreate mlag peer "garagem"
configure mlag peer "garagem" ipaddress 198.51.100.2
enable mlag port 1 peer "garagem" id 100
_ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __

Port: 15 Virtual-router: VR-Default
Type: UTP
Random Early drop: Unsupported
Admin state: Enabled with auto-speed sensing auto-duplex
Link State: Active, 100Mbps, full-duplex
Link Ups: 6 Last: Thu Apr 28 08:12:23 2016
Link Downs: 5 Last: Thu Apr 28 08:11:56 2016

VLAN cfg:
Name: gerencia, 802.1Q Tag = 2041, MAC-limit = No-limit, Virtual router: VR-Default
Name: isc, 802.1Q Tag = 10, MAC-limit = No-limit, Virtual router: VR-Default
STP cfg:

Protocol:
Trunking: Load sharing is not enabled.
Multi-switch LAG: Inter-Switch Connection Port

_ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _

Multi-switch Link Aggregation Peers:

MLAG Peer : garagem
VLAN : isc Virtual Router : VR-Default
Local IP Address : 198.51.100.1 Peer IP Address : 198.51.100.2
MLAG ports : 1 Tx-Interval : 1000 ms
Checkpoint Status : Up Peer Tx-Interval : 1000 ms
Rx-Hellos : 4690 Tx-Hellos : 108553
Rx-Checkpoint Msgs: 480 Tx-Checkpoint Msgs: 470
Rx-Hello Errors : 0 Tx-Hello Errors : 0
Hello Timeouts : 2 Checkpoint Errors : 0
Up Time : 0d:0h:44m:37s Peer Conn.Failures: 2
Local MAC : 00:04:96:36:96:49 Peer MAC : 00:04:96:34:93:31
Config'd LACP MAC : None Current LACP MAC : 00:04:96:34:93:31
_ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _

Local Local Remote
MLAG Local Link Remote Peer Fail Fail
Id Port State Link Peer Status Count Count
================================================================================
100 1 A Up garagem Up 0 0
================================================================================
Local Link State: A - Active, D - Disabled, R - Ready, NP - Port not present
Remote Link : Up - One or more links are active on the remote switch,
Down - No links are active on the remote switch,
N/A - The peer has not communicated link state for this MLAG
port

Number of Multi-switch Link Aggregation Groups : 1
Convergence control : Fast
Userlevel 6
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Hi Felipe, it seems the configuration is correct.

Please provide the following outputs:

For both MLAG peers:

show configuration vsm
show sharing
show mlag peer
show vlan gerencia
show vlan isc

For HSU:

show sharing
show vlan gerencia

I see 2 peer connection failures for the ISC link through the Radwin device. Just want to confirm if that's incrementing through the "show mlag peer" output.
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Seguem:

Extreme Sede.4 # show configuration vsm#
# Module vsm configuration.
#
configure mlag ports convergence-control fast
create mlag peer "sede"
configure mlag peer "sede" ipaddress 198.51.100.1
enable mlag port 1 peer "sede" id 100
Extreme Sede.5 # show sharing
Load Sharing Monitor
Config Current Agg Ld Share Ld Share Agg Link Link Up
Master Master Control Algorithm Group Mbr State Transitions
==============================================================================
==============================================================================
Link State: A-Active, D-Disabled, R-Ready, NP-Port not present, L-Loopback
Load Sharing Algorithm: (L2) Layer 2 address based
(L3_L4) Layer 3 address and Layer 4 port based
Number of load sharing trunks: 0
Extreme Sede.6 # show mlag peer
Multi-switch Link Aggregation Peers:

MLAG Peer : sede
VLAN : isc Virtual Router : VR-Default
Local IP Address : 198.51.100.2 Peer IP Address : 198.51.100.1
MLAG ports : 1 Tx-Interval : 1000 ms
Checkpoint Status : Up Peer Tx-Interval : 1000 ms
Rx-Hellos : 145 Tx-Hellos : 563
Rx-Checkpoint Msgs: 13 Tx-Checkpoint Msgs: 12
Rx-Hello Errors : 0 Tx-Hello Errors : 0
Hello Timeouts : 0 Checkpoint Errors : 0
Up Time : 0d:0h:2m:18s Peer Conn.Failures: 0
Local MAC : 00:04:96:34:93:31 Peer MAC : 00:04:96:36:96:49
Config'd LACP MAC : None Current LACP MAC : 00:04:96:34:93:31
Extreme Sede.7 # show vlan gerencia
VLAN Interface with name gerencia created by user
Admin State: Enabled Tagging: 802.1Q Tag 2041
Description: None
Virtual router: VR-Default
IPv4 Forwarding: Enabled
IPv4 MC Forwarding: Disabled
Primary IP: 192.168.204.51/24
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: None
Protocol: Match all unfiltered protocols
Loopback: Disabled
NetLogin: Disabled
OpenFlow: Disabled
QosProfile: None configured
Egress Rate Limit Designated Port: None configured
Flood Rate Limit QosProfile: None configured
Ports: 8. (Number of active ports=2)
Untag: 20(Monitoramento), 22,24(manutencao)
Tag: *1(SEDE_MC)G,!2(HSU_JK),3(radio), *15,21(UPLINK_FW_SEDE)
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
(e) Private-VLAN End Point Port
(x) VMAN Tag Translated port
(G) Multi-switch LAG Group port
(H) Dynamically added by MVRP
(U) Dynamically added uplink port
(V) Dynamically added by VM Tracking

Extreme Sede.8 # show vlan isc
VLAN Interface with name isc created by user
Admin State: Enabled Tagging: 802.1Q Tag 10
Description: None
Virtual router: VR-Default
IPv4 Forwarding: Disabled
IPv4 MC Forwarding: Disabled
Primary IP: 198.51.100.2/30
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: None
Protocol: Match all unfiltered protocols
Loopback: Disabled
NetLogin: Disabled
OpenFlow: Disabled
QosProfile: None configured
Egress Rate Limit Designated Port: None configured
Flood Rate Limit QosProfile: None configured
Ports: 1. (Number of active ports=1)
Tag: *15
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
(e) Private-VLAN End Point Port
(x) VMAN Tag Translated port
(G) Multi-switch LAG Group port
(H) Dynamically added by MVRP
(U) Dynamically added uplink port
(V) Dynamically added by VM Tracking
__________________________________________________________________

Extreme Garagem.1 # show configuration "vsm"#
# Module vsm configuration.
#
configure mlag ports convergence-control fast
create mlag peer "garagem"
configure mlag peer "garagem" ipaddress 198.51.100.2
enable mlag port 1 peer "garagem" id 100
Extreme Garagem.2 # show sharing
Load Sharing Monitor
Config Current Agg Ld Share Ld Share Agg Link Link Up
Master Master Control Algorithm Group Mbr State Transitions
==============================================================================
==============================================================================
Link State: A-Active, D-Disabled, R-Ready, NP-Port not present, L-Loopback
Load Sharing Algorithm: (L2) Layer 2 address based
(L3_L4) Layer 3 address and Layer 4 port based
Number of load sharing trunks: 0
Extreme Garagem.3 # show mlag peer
Multi-switch Link Aggregation Peers:

MLAG Peer : garagem
VLAN : isc Virtual Router : VR-Default
Local IP Address : 198.51.100.1 Peer IP Address : 198.51.100.2
MLAG ports : 1 Tx-Interval : 1000 ms
Checkpoint Status : Up Peer Tx-Interval : 1000 ms
Rx-Hellos : 13386 Tx-Hellos : 124278
Rx-Checkpoint Msgs: 1464 Tx-Checkpoint Msgs: 1452
Rx-Hello Errors : 0 Tx-Hello Errors : 0
Hello Timeouts : 4 Checkpoint Errors : 0
Up Time : 0d:0h:4m:30s Peer Conn.Failures: 4
Local MAC : 00:04:96:36:96:49 Peer MAC : 00:04:96:34:93:31
Config'd LACP MAC : None Current LACP MAC : 00:04:96:34:93:31
Extreme Garagem.4 # show vlan gerencia
VLAN Interface with name gerencia created by user
Admin State: Enabled Tagging: 802.1Q Tag 2041
Description: None
Virtual router: VR-Default
IPv4 Forwarding: Enabled
IPv4 MC Forwarding: Disabled
Primary IP: 192.168.204.57/24
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: None
Protocol: Match all unfiltered protocols
Loopback: Disabled
NetLogin: Disabled
OpenFlow: Disabled
QosProfile: None configured
Egress Rate Limit Designated Port: None configured
Flood Rate Limit QosProfile: None configured
Ports: 7. (Number of active ports=2)
Untag: 22,24(manutencao)
Tag: *1(Garagem_MC)G,!2(PP_BOMPASTOR),3(radio), *15,21(UPLINK_FW_SM)
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
(e) Private-VLAN End Point Port
(x) VMAN Tag Translated port
(G) Multi-switch LAG Group port
(H) Dynamically added by MVRP
(U) Dynamically added uplink port
(V) Dynamically added by VM Tracking

Extreme Garagem.5 # show vlan isc
VLAN Interface with name isc created by user
Admin State: Enabled Tagging: 802.1Q Tag 10
Description: None
Virtual router: VR-Default
IPv4 Forwarding: Disabled
IPv4 MC Forwarding: Disabled
Primary IP: 198.51.100.1/30
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: None
Protocol: Match all unfiltered protocols
Loopback: Disabled
NetLogin: Disabled
OpenFlow: Disabled
QosProfile: None configured
Egress Rate Limit Designated Port: None configured
Flood Rate Limit QosProfile: None configured
Ports: 1. (Number of active ports=1)
Tag: *15
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
(e) Private-VLAN End Point Port
(x) VMAN Tag Translated port
(G) Multi-switch LAG Group port
(H) Dynamically added by MVRP
(U) Dynamically added uplink port
(V) Dynamically added by VM Tracking

__________________________________________________________________

Extreme Morro Cristo.1 # show sharingLoad Sharing Monitor
Config Current Agg Ld Share Ld Share Agg Link Link Up
Master Master Control Algorithm Group Mbr State Transitions
==============================================================================
==============================================================================
Link State: A-Active, D-Disabled, R-Ready, NP-Port not present, L-Loopback
Load Sharing Algorithm: (L2) Layer 2 address based, (L3) Layer 3 address based
(L3_L4) Layer 3 address and Layer 4 port based
Number of load sharing trunks: 0
Extreme Morro Cristo.2 # show vlan gerencia
VLAN Interface with name gerencia created by user
Admin State: Enabled Tagging: 802.1Q Tag 2041
Description: None
Virtual router: VR-Default
IPv4 Forwarding: Enabled
IPv4 MC Forwarding: Disabled
Primary IP: 192.168.204.67/24
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: None
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: 8. (Number of active ports=2)
Untag: 22,24(Manutencao)
Tag: *1(MC_Garagem),*2(MC_Sede),3(MC_R.Cidade-Sol),4(MC_R.Caicaras),5(HBS_S.Terezinha),6(HBS_B.Vista)
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
__________________________________________________________________

Thank You!
Userlevel 6
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Hi Felipe,

I see that you have enabled MLAG peers as Sede and Garagem switches.

That means you will see traffic load balancing from "Extreme Morro Cristo" to both Sede and Garagem.

If that's what you are trying to accomplish (traffic load balancing from "Extreme Morro Cristo" switch to both Sede and Garagem switches) then you just need to enable sharing for "Extreme Morro Cristo" with the command below:

enable sharing 1 grouping 1,2 algorithm address-based l3_l4
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

HI Henrique,

Initially I would like to thank you for the support you are giving me, being valuable.I realized the configuration of sharing the "Extreme Morro Chisto" and have no more packet loss.
Performing tests, I'm in laboratory, simulated falls and when it was at the port 15 (ISC) the connection failed.
Can you help me again.
Much obliged.
Userlevel 6
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Hi Felipe, glad to hear this is fixed. That's The HUB! 🙂

The ISC link is responsible to keep both MLAG peers working as just 1 logical box (by exchanging health-check packets) and must by active all the time.

"If the ISC link alone goes down when the remote peer is alive, both the MLAG peers forward the south- bound traffic, resulting in duplication of traffic. However, this does not result in traffic loops. This is because the remote node load shares to both the MLAG peers and does not forward the traffic received on one of the load shared member ports to other member ports of the same load shared group."

To minimize ISC fail you can use 2 or more links between MLAG peers (ISC link) and enable sharing (LAG with LACP).

Another option would be using an alternate ipaddress (available in EXOS 15.5 and above) for MLAG peer health-check, but according to the diagram provided, the physical path is the same.
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Henrique,

So, from what I understand, this configuration in this scenario does not meet my demand, right?Since I need redundancy and balancing.
Userlevel 6
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Hi Felipe, the only issue here is related to ISC link fail.

Using a secondary health-check path would fix this.

I was wondering about creating a new vlan (ISC2) to the following devices/ports:

- Sede port 1 (ip 1.1.1.1/30)
- Garagem port 1 (ip 1.1.1.2/30)
- Extreme Morro Cristo ports 1 and 2 (no ipaddress)

"To reduce the amount of traffic on the alternate path, health check messages are initiated on the alternate path only when the ISC link goes down. When the ISC link is up, no health check messages are exchanged on the alternate path."

Would be great to validate that in your lab and simulate all possible failures (including the ISC link).
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

New MLAG peer? As will be held this check?
Userlevel 6
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Hi Felipe,

It's not a new MLAG peer. It's a 2nd health-check ISC vlan/ip.

Is case of a link fail between MLAG peers (Sede and Garagem), a 2nd health-check ISC vlan/ip (let's say "ISC2" vlan) will be used to check and assure both peers can still communicate and sync FDB tables till the main ISC link is restored.

This ISC2 vlan would be using the physical link through "Extreme Morro Cristo" switch as follows:

- Sede port 1 (ip 1.1.1.1/30)
- Garagem port 1 (ip 1.1.1.2/30)
- Extreme Morro Cristo ports 1 and 2 (no ipaddress)

Therefore no additional physical link is needed.

Usually this solution uses the "Mgmt" vlan as the 2nd path (new physical link is needed).

However, I believe that the above configuration might help.

That should be validated first.
Felipe wrote:

Hi Henrique,
Thank you for the tip!

Performed a lab on the item that you sent me and is working, however I have some questions:

Station occurring losses of packages, about 20x1.

This architecture is redundancy or balancing? How to check the traffic on each side of the network?

Hi Henrique,

See if this right. It would be just that?
For not work.

__________________________________________________________________

Extreme Sede.10 # show vlan "isc2"
VLAN Interface with name isc2 created by user
Admin State: Enabled Tagging: 802.1Q Tag 20
Description: None
Virtual router: VR-Default
IPv4 Forwarding: Disabled
IPv4 MC Forwarding: Disabled
Primary IP: 1.1.1.1/30
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: None
Protocol: Match all unfiltered protocols
Loopback: Disabled
NetLogin: Disabled
OpenFlow: Disabled
QosProfile: None configured
Egress Rate Limit Designated Port: None configured
Flood Rate Limit QosProfile: None configured
Ports: 1. (Number of active ports=1)
Tag: *1(SEDE_MC)G
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
(e) Private-VLAN End Point Port
(x) VMAN Tag Translated port
(G) Multi-switch LAG Group port
(H) Dynamically added by MVRP
(U) Dynamically added uplink port
(V) Dynamically added by VM Tracking
__________________________________________________________________

Extreme Garagem.14 # show vlan "isc2"

VLAN Interface with name isc2 created by user
Admin State: Enabled Tagging: 802.1Q Tag 20
Description: None
Virtual router: VR-Default
IPv4 Forwarding: Disabled
IPv4 MC Forwarding: Disabled
Primary IP: 1.1.1.2/30
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: None
Protocol: Match all unfiltered protocols
Loopback: Disabled
NetLogin: Disabled
OpenFlow: Disabled
QosProfile: None configured
Egress Rate Limit Designated Port: None configured
Flood Rate Limit QosProfile: None configured
Ports: 1. (Number of active ports=1)
Tag: *1(Garagem_MC)G
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
(e) Private-VLAN End Point Port
(x) VMAN Tag Translated port
(G) Multi-switch LAG Group port
(H) Dynamically added by MVRP
(U) Dynamically added uplink port
(V) Dynamically added by VM Tracking

__________________________________________________________________

Extreme Morro Cristo.6 # show vlan "isc2"

VLAN Interface with name isc2 created by user
Admin State: Enabled Tagging: 802.1Q Tag 20
Description: None
Virtual router: VR-Default
IPv4 Forwarding: Disabled
IPv4 MC Forwarding: Disabled
IPv6 Forwarding: Disabled
IPv6 MC Forwarding: Disabled
IPv6: None
STPD: None
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: 1. (Number of active ports=1)
Tag: *1g
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
Userlevel 6
Hi Felipe,

The configuration for alternate path should be as follows:

Sede:

create vlan ISC2 tag 20
config ISC2 add ports 1 tagged
config ISC2 ipaddress 1.1.1.1/30
configure mlag peer alternate ipaddress 1.1.1.2 vr vr-default

Garagem:

create vlan ISC2 tag 20
config ISC2 add ports 1 tagged
config ISC2 ipaddress 1.1.1.2/30
configure mlag peer alternate ipaddress 1.1.1.1 vr vr-default

Extreme Morro Cristo:

create vlan ISC2 tag 20
config ISC2 add ports 1 tagged

Since the alternate path will cross 2 ports of the same LAG (through "Extreme Morro Cristo" switch), I'm not sure if that works. You can ping 1.1.1.2 from Sede switch and confirm if the communication is working.
Hi Henrique,

Thank you for help, but unfortunately I'll have to check for new swichtes that accept EXOS 15.5, because in my lab I as follows:

Extreme Morro Christ Model: X440-24T View: 15.5.3.4
Extreme Seat Model: X250e-48p View: 15.3.2.11 Pacth1-2
Extreme Garage Model: X450e-48p View: 15.3.2.11 Pacth1-2

It was my laboratory for water below. For not accept "alternate ipaddress"
Userlevel 6
Hi Felipe, just in case you want to check the EXOS version supported by platform you can find that in the link below:

http://documentation.extremenetworks.com/hw_sw_compatibility/HardwareSoftwareCompatibility/r_summit-...
Hi Henrique,

Did I can perform this lab with the ExtremeXOS VM?
Userlevel 6
Hi Felipe, I haven't tried MLAG configuration in EXOS VM yet, but I believe you can get this working in your lab.

Please check the article below for information about how to get the latest EXOS VM version:

Where to download the latest version of EXOS VM?

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