Fault Finding recommendations appreciated.
I have had the network below stable for over a year and had a powercut over the weekend. As of Monday Morning we had comms issues for the users on the ground floor.
Description of the Network
Basically over two floors, Vlan 10 on the Ground, Vlan 20 on the First. We use Rapid Spanning Tree with multiple fibres for resilience. Each floor has a 3560 running Routing and the other 3 switches per floor are for switching in that VLAN Only. The 3560 on each floor has an MPLS Connecting using BGP.
Description of the Fault.
Users on the ground floor have poor network ( non workable connections over the MPLS )connections. And also the Company has issues connecting to the ground floor users workstations.
Fault Checks so far.
If we kill the ground floor switch ( l3 switch ), all users users the 1st floor MPLS connection and all works well, Comms are fully restored.
The ground floor switch ( Bar the GBICS ) has been replaced with a new switch, config and IOS loaded but has the same issue!
With the ground floor Routing switch live, the users can speak ok locally, and even across the VLANS to VLAN20 locally, everything is perfect, they can ping their Default gateways, however if they ping the Local MPLS connection on the local router, Intermittent responses come back.
The ground floor Routing switch, can ping the whole company and the locall Networks, no issues at all.
The business can ping the switch, but intermittent to the local network.
Spanning tree is blocking correctly and stable
HSRP is stable and correct
Routing BGP and OSPF is stable and correct
No errors on Ports
No other fluctuating ports...
Ive drawn a blank and any further ideas would be greatly received.
The network is currently running fine with the Ground floor l3 switch and MPLS Connection disconnected.
LEEroy
MCNE6,CCNP,CWNA,CCSA,Project+
I have had the network below stable for over a year and had a powercut over the weekend. As of Monday Morning we had comms issues for the users on the ground floor.
Description of the Network
Basically over two floors, Vlan 10 on the Ground, Vlan 20 on the First. We use Rapid Spanning Tree with multiple fibres for resilience. Each floor has a 3560 running Routing and the other 3 switches per floor are for switching in that VLAN Only. The 3560 on each floor has an MPLS Connecting using BGP.
Description of the Fault.
Users on the ground floor have poor network ( non workable connections over the MPLS )connections. And also the Company has issues connecting to the ground floor users workstations.
Fault Checks so far.
If we kill the ground floor switch ( l3 switch ), all users users the 1st floor MPLS connection and all works well, Comms are fully restored.
The ground floor switch ( Bar the GBICS ) has been replaced with a new switch, config and IOS loaded but has the same issue!
With the ground floor Routing switch live, the users can speak ok locally, and even across the VLANS to VLAN20 locally, everything is perfect, they can ping their Default gateways, however if they ping the Local MPLS connection on the local router, Intermittent responses come back.
The ground floor Routing switch, can ping the whole company and the locall Networks, no issues at all.
The business can ping the switch, but intermittent to the local network.
Spanning tree is blocking correctly and stable
HSRP is stable and correct
Routing BGP and OSPF is stable and correct
No errors on Ports
No other fluctuating ports...
Ive drawn a blank and any further ideas would be greatly received.
The network is currently running fine with the Ground floor l3 switch and MPLS Connection disconnected.
LEEroy
MCNE6,CCNP,CWNA,CCSA,Project+
