Questions tagged [vpc]
For questions about the Cisco developed Virtual Port Channel (vPC) technology. For instance, you want to stack two Nexus 7000 switches or you are troubleshooting a problem with a Nexus 2000 fabric extender.
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How does a packet respond to a request from NLB that has a ALB target group to a node with client IP preservation on?
Traffic Flow for Incoming Requests:
The client sends a request to NLB.
The NLB forwards the request to the Application Load Balancer (ALB) with client IP preservation enabled.
The ALB receives the ...
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how to convert two routed interfaces between two pair 9k and pair 7k to vPC
We have pairs of N7K and N9k connecting via eigrp (full mesh), each one of the pair connected to two mpls routers, each pair have routing table, I am looking to replace the routed interfaces between ...
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vPC not getting configured on Nexus switches even though the config status is green
I have the following status on my Nexus switches regarding the vPC configuration status and I see the number of vPCs configured as zero.
Legend:
(*) - local vPC is down, forwarding via ...
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Cisco vPC election process
Quite a bad scenario. I had a power outage after which only one of two Nexus switches came online. It couldn't establish peer link (of course). I believe I have to elect the master manually, but don't ...
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leaf switches and STP issue
I have a situation where I need to connect leaf switches in the following manner.
why we are doing this? we are connecting two different sites,kind of a cross site connection.
The red cross mark is ...
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Is internal network traffic sent to private subnets via their NAT Server?
Similar to this question, I'm wondering how resources in my public subnets communicate with those in my private subnets - when there is a NAT service present.
My impression is that a self-managed NAT ...
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Cisco Nexus vPC Portchannel issues
I'm currently facing a network issue between Cisco Nexus 93108 (9.3.11) on an LACP port-channel configuration.
The replica below help us to reproduce the issue we had (using 4x Nexus 9000v qcow2 image ...
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VPN conflicts from using 2 VPNs [closed]
My QA has a problem. They need to test the app, and the database at the same time. To access our app (testing environment), they need to connect to the company VPN through GlobalProtect, and then they ...
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Is it risky to change hardcoded STP mLAG port cost on Cisco Nexus LACP port
When two Cisco Nexus are connected in VPC, the stp cost is hardcoded to 200 for the mLAG LACP ports.
I would like to manually change the cost on my devices because my 2G and 200G links have the same ...
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VPC two types of nexus 7700
Can we VPC two types of nexus 7700 with each other? I mean , we want to VPC one Nexus 7710 with Nexus 7718.
Does it possible ?
Thanks,
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vPC between Cisco nexus 9236C and 9336C
I have a Nexus N9K-C9236C and I would like to add an other one to have redundancy with vPC fonctionnality (like describe here).
The point is my suppliers don't sell this model anymore because it has ...
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Arista MLAG: should I have a separate L3 interface for keepalive like in Cisco's NX-OS?
In Cisco's NX-OS when forming the MLAG equivalent pair (vPC) there are some best practices to follow, for example, a separate bonded L3 interface just for the keepalive packets using separate ports ...
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Port Channel issue on Cisco gear
I have a lab where I'm connecting a Cisco CSR1000V and a Nexus 9000 switch. These devices are connected back to back. Relevant configuration is:
Router:
interface Port-channel1
mtu 9216
!
interface ...
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Can a Subnet have more than one CIDR range?
For many years I thought of a subnet as a single contiguous range of ip addresses expressed using CIDR notation.
However on GCP a subnet can have a primary ip address range from which VMs get ...
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Is it possible to make a truly active\active L3 VRRP\HSRP configuration between two Nexus in a vPC
I'm an admin that is used to working with older Cisco gear, the Catalyst 6500 and the like. This is my first time diving into the world of nxOS. I'm trying to create a truly active\active ...
