Questions tagged [arista]
Use this tag for Arista Specific questions.
20
questions
2
votes
2answers
33 views
Arista VXLan with QinQ
I've got a weird situation. Three doctors offices are merging in two cities and we are planning on merging them into one building in each city. Due to politics and crappy software each office will ...
0
votes
1answer
35 views
vpc/mlag block half of uplink?
We want to configure 2 Arista switches by mlag and connect 1 port channeled switch to both of arista's. so in this case, if one of our arista fail the other one will respond.
now my question here is ...
0
votes
0answers
15 views
How to get all the telemetry data from Arista's CloudVision?
Arista's operating system the EOS sends all their telemetry data to the CloudVision platform. CloudVision than normalizes that data converts to HBase if I am not mistaken. So I have a simple question, ...
0
votes
1answer
68 views
Two switches, one uplink - best way to link them?
Overview
I have two Arista 7050SX switches. They don't support stacking. But I essentially will be using them as a stacked pair none the less (just means managing two individual switches).
They're ...
0
votes
1answer
45 views
Arista switch - getting chassis ID of currently logged in switch
I can not find how can i check local switch Chassis ID. here i found that command:
show lldp local-info management 1
should show me what i want but there is no "local-info" option. Is there any ...
0
votes
1answer
104 views
Difference between port-channel lacp fallback individual VS. static?
What is the exact difference between:
port-channel lacp fallback individual
port-channel lacp fallback static
1
vote
1answer
284 views
Confused about switch configuration with 2 VLANs, and next hop route?
I have an Arista switch I'm trying to setup for learning. The router is a Netgate SG-3100 running pfSense 2.4.5.
I have two VLANs setup:
VLAN 22 - for normal browsing. Using the 10.0.22.0/24 subnet
...
1
vote
1answer
49 views
Arista eos eAPI for full config
Anyone worked on full configuration of arista switches using the eAPI? I am going through the ansible eos_ modules and see that there are few missing configs. Do we have to use eos_config module for ...
2
votes
2answers
170 views
Finding the available capacity on switch interface in bytes or bits
Below is the output from my "show interface " command
PE1.18:01:44#sh interfaces Ethernet 3
Ethernet3 is up, line protocol is up (connected)
Hardware is Ethernet, address is 001c.7374.3d95
...
1
vote
2answers
541 views
25G SFP28 NIC and 25G SFP Adapter
My company recently purchased some Dell R740's with 2 Dual Port 25G SFP28 NIC's (Broadcom 57414) and wants to hook them up to an Arista 25G switch. We have two types of SFP adapters from Arista: SFP-...
1
vote
1answer
363 views
Arista 7050s Loopback Q-in-Q
Debugging an issue where I'm trying to get q-in-q working on an Arista 7050S with a loopback.
I’ve got packets egressing the switch double tagged but in ingress, I can see them on the STAG’s SVI. I’...
1
vote
0answers
92 views
Unexpected behavior when changing switch from unmanaged to managed mode [closed]
I'm currently puzzled by why a switch works only when in unmanaged mode. If I enable Management mode, using default configuration, things break down. Here's the current situation:
...
4
votes
2answers
4k views
How to encapsulate all VLAN traffic inside VXLAN
As I understand VXLAN, it looks like it should be able to encapsulate and properly route VLAN-tagged traffic.
However, in investigating how to actually configure VXLAN on network devices, it looks ...
2
votes
3answers
444 views
Arista switches- Email alert if interface status changes
I'm looking to be notified of interface state changes on my Arista switches without my manual polling of the logs. For example, tailing var/log/messages, I might see something like:
un 29 19:10:48 ...
3
votes
1answer
590 views
Arista: Unexpected results when pinging MLAG SVI
My understanding of Arista's implementation of MC-LAG is relatively weak, so its likely I've misunderstood a deliberate limitation of how the mlag works.
Taking a basic example,
Where,
switch1:
...
2
votes
1answer
1k views
Arista: Configuration diffs and archiving
Looking through the documentation for Arista EOS - the configuration replace command was only introduced in 4.14, leaving <4.14 without any form of replacing configurations (versus simply merging).
...
3
votes
2answers
62 views
Arista 40G switch capeablities
I have an FPGA that outputs packets to a fixed IP and MAC address. That then feeds into a 40G Arista switch. The Unicast UDP packets correctly route to the destination IP and MAC. We now have ...
2
votes
1answer
380 views
Inter-PVLAN communication on Arista 7050S
We have an Arista 7050S configured with a few PVLANs. All hosts on these PVLAN share the same /24 network (major flaw?). They can communicate between themselves within each PVLAN and with the gateway (...
1
vote
1answer
242 views
Allow outgoing connections
I have an Arista switch (EOS) and I'm having trouble allowing outgoing connection from the switch to the outside. Using tcpdump I can see that no packets are being allowed. This has an impact on DNS ...
8
votes
4answers
3k views
Arista MLAG ISSU upgrade - primary/secondary switch?
When upgrading Arista switches which are part of an MLAG cluster, is it necessary to start with the secondary switch?
In "Arista Warrior", from Gary A. Donahue, he specifies on page 123 to start by ...
