Trying to link Extreme X440 to Dell S4112F-On via LAG / LACP

[jRich335]

Hello Everyone,

First, a little background. I am a 1 man 1 stop IT shop for a 400+ user production environment, managing all facets of the infrastructure where I work. To say that my typical day in insane, would be a massive understatement. 

On to my problem, I have been trying to figure out how to establish a connection between our new infrastructure (VM hosts, Data store, core network backbone) and our existing switching infrastructure, and as it stands, I cannot get the connection established.

Diagram below:

I have set-up a test network so that nothing will be impacting production, until I can figure this out.

There is a very good possibility that I am trying to over complicate this and if I am, please just let me know, I am open to suggestions. 

I have had all this dumped in my lap, with a timeline breathing down my neck, and I am feeling out of my depth, so any input would be greatly appreciated.

Thank you in advance!

[jRich335 · Accepted solution]

Turns out that STP was not the problem at all and everything on the Dell side was verified correctly. The Extreme X440 connectivity would not work due to the lack of native 10GB support, which I found out after calling into the GTAC, and had a Tech remote in to see what was going on, at which point I found out that the Extreme X440 cannot communicate with a SPF+ connection on ANY on the front ports on the switch, so we turned on the 30-day “dual port 10GB demo license”, reset the ports from 23 & 24 to 25 & 26, and everything worked perfectly. 

TL:DR - Turned on 10GB on Extreme Side, set ports 25 & 26 (these ports are the 10GB ports/ non-stacking) in LACP sharing for 10GB functionality, and it works.

[jRich335]

You have pointed me in the right direction, I think. I see the LACP port-channels that I configured on the Dell switches are all being blocked via MSTP so, let me get this resolved and I will be back in touch.

Thanks Christopher!

[CThompsonEXOS]

Got you and thanks for that. It looks like layer 1 isn’t actually up so layer 2(LACP, etc) won’t work either.  Is STP or anything on the Dell side causing the ports to not be physically up? 

[jRich335]

MIS TEST.4 # show sharing detail
Load Sharing Monitor
Config    Current Agg     Min    Ld Share        Ld Share  Agg Link  Link Up
Master    Master  Control Active Algorithm Flags Group     Mbr State Transitions
================================================================================
    23            LACP       1    L2        A     23        -     R       0
                                  L2              24        -     R       0
==============================================================================
VLAN Configuration:
        Name: Default,  Virtual Router: VR-Default
          Internal tag = 1,  MAC-limit = No-limit
        Name: Camera,  Virtual Router: VR-Default
          802.1Q Tag = 2,  MAC-limit = No-limit
        Name: PLC-Industrial,  Virtual Router: VR-Default
          802.1Q Tag = 6,  MAC-limit = No-limit
        Name: Speakers,  Virtual Router: VR-Default
          802.1Q Tag = 3,  MAC-limit = No-limit
        Name: SVR-SW-PTR-PC-PRD_Entry,  Virtual Router: VR-Default
          802.1Q Tag = 5,  MAC-limit = No-limit
        Name: Wireless-Guest,  Virtual Router: VR-Default
          802.1Q Tag = 9,  MAC-limit = No-limit
        Name: Wireless-Secure,  Virtual Router: VR-Default
          802.1Q Tag = 4,  MAC-limit = No-limit
STP Configuration:
        s0(enable),  Tag= (none),  Mode=802.1D,  State=DISABLED
================================================================================
================================================================================
Link State: A-Active, D-Disabled, R-Ready, NP-Port not present, L-Loopback
Minimum Active: (<) Group is down. # active links less than configured minimum
Load Sharing Algorithm: (L2) Layer 2 address based, (L3) Layer 3 address based
                        (L3_L4) Layer 3 address and Layer 4 port based
Flags:
    A - All: Distribute to all members,
    d - Dynamically created shared port,
    L - Local Slot: Distribute to members local to ingress slot,
    P - Port Lists: Distribute to per-slot configurable subset of members,
    R - Resilient Hashing enabled.
Number of load sharing trunks: 1