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I have a rather old network that I have inherited. I know that extending a VLAN from one DC to another DC in the same AS using VPLS and MPLS is rather old hat (I would rather utilise vxlan but these C6880 switches do not support it), but I have no ot...
Hi,
We have a 3 x DC architecture that can be summarised as per below:
DC1 - West LondonDC2 - Telehouse WestDC3 - Telehouse NorthDC1 has an ethernet metro line directly to DC2 and DC3 and likewise DC2 and DC3 have a X-Connect within Telehouse, thus f...
Hi,
I have a 3 datacentre architecture. See below:
DC1: Connection to DC2 and DC3DC2: Connection to Transit ISP 1, DC1 and X-Connect to DC3DC3: Connection to Transit ISP 2, DC1 and X-Connect to DC2
If we look at the above, it is basically a triangle ...
Hi,
I have a lab that replicates our Core network consisting of 6 x C6880-X switches in a 3 x VSS topology.
I have VLANs on each of these VSS's that have been assigned layer 3 interfaces and are also installed into the VLAN Database.
In normal circum...
Hi Harold,Many thanks for all your help regarding this issue. It is very appreciated.I have already put a plan in place to lower the MTU to 8000 as per the link to DC3 from DC1. The original MTU was set by the original network engineer and I simpy co...
Hi Harold,
The maximum packet size I can ping with the df-bit set is MTU 9168.
I understand what you mean by the lack of possible connectivity, but here is what makes no sense then. In the LAB I have the following configured on the LAG between DC1 an...
Hi Harold,
Many thanks for all your help so far.
Here is the requested information:
DC1:C6880-VSS-DC1#show clns int port-channel 512Port-channel512 is up, line protocol is upChecksums enabled, MTU 9213, Encapsulation SAPERPDUs enabled, min. interval ...
Hi Harold,
Please find below the readout for DC2 and the LAG config for DC1 to DC2 connection on DC1:
DC2:C6880-VSS-DC2#show run interface port-channel 512Building configuration...Current configuration : 292 bytes!interface Port-channel512description...
Hi Harold,
There is not a LAG (as the diagram shows) between DC1 and DC3. I want to upgrade this to a LAG but I cannot because all the routing goes that way. Once I can resolve this I can get the LAG connected and configured between DC1 and DC3 and I...
