4
votes
Accepted
High availability links on VMware ESXi
Good question.
There's no need to run static LAG in VMware. If you aren't in a position to use VMware Distributed Switches (vDs) and LACP, it's best to just use VMware's failover and set the NIC ...
- 196k
3
votes
Is information transmitted over Cisco routers saved anywhere on the router itself?
Sure, for microseconds it lives in some buffers so that the routers can check it against ACLs and match it against its routing tables (technically it only needs the headers for performing these ...
- 68.6k
2
votes
Windows 2012 R2 NTP server Unable to sync with Cisco Nexus
We had similar issues in our Cisco based environment. The Cisco NTP servers may be rejecting the requests from the Windows servers due to the "mode" they are using to synchronize time. I'm not ...
- 16.7k
2
votes
Migration to Cisco Nexus 3064-T
Sadly I don't know. If you are planning to put any iSCSI traffic on the N3064 update your question or add a comment because I know a lot about that.
Intel X540 based NICs definitely work with the ...
- 2,831
2
votes
What do I need to do to enable sFlow on my Cisco Nexus 9372PX?
Make sure you check the prerequisites mentioned in that document:
For Cisco Nexus 9332PQ, 9372PX, 9372TX, and 93120TX switches and for Cisco Nexus 9396PX, 9396TX, and 93128TX switches with the N9K-...
- 1,837
2
votes
LACP bond work intermittently on Cisco N5000
What you're really seeing is just a "quantization" effect of the port channel load balancing algorithm. A single flow will always go through the same physical interface, and in your case, you have two ...
2
votes
Accepted
initial cisco nexus setup without serial cable
Cisco has a standard serial cable, called a "console cable." You can find the pinouts on line, or I'm sure there many places to buy one.
- 2,149
2
votes
Accepted
Cisco Catalyst "Traffic Spanning" not working, multiple methods attempted, not sure what to try next
Based on the comments, it seems that you had not created the VLAN in the VLAN database on the switch.
Not creating VLANs with the global vlan command for a stand-alone switch is a common source of ...
- 3,198
2
votes
About 4x10G SFP+ <--> QSFP breakout cable
Weirdly we've been dealing with these in the last few weeks, they can be tricky buggers. In particular we've been using them from C220 M5's into 5672UP's.
Anyway theoretically you can connect 2, and ...
- 101k
1
vote
initial cisco nexus setup without serial cable
It does seem to be possible without serial port. By default it requests "Power On Auto Provisioning" via dhcp, and there is an open source tool to respond to it.
https://packet2python.io/...
- 157
1
vote
About 4x10G SFP+ <--> QSFP breakout cable
You can use either mode:
The Cisco Nexus 3172PQ (Figure 1) is a 10-Gbps Enhanced Small Form-Factor Pluggable (SFP+)–based ToR switch with 48 SFP+ ports and 6 Quad SFP+ (QSFP+) ports. Each SFP+ port ...
- 7,756
1
vote
Accepted
SSH Error from Nexus 5K to Linux
In your /etc/ssh/sshd_config file, find the line Ciphers and add one of the ciphers your Nexus supports (say, aes256-cbc) to it, keeping the ciphers you already have enabled for your other devices. ...
- 19.4k
1
vote
Rate Limit VLAN interface | Cisco Nexus
Nexus platform does not support all the QoS features for it being a datacenter switch and therefore you could only limit traffic inbound to that port but outbound traffic policing is not really ...
- 3,018
1
vote
Is it possible to run the Cisco NX-OS 6.x copy command without the prompt to select a VRF?
The vrf statement is optional at least in the 7.x code on 5500's and 9K's I have access to at the moment as well on 6.2 on 7K's I've used recently. Indeed, the point of the default vrf is that it's ...
- 8,123
1
vote
cisco 5548 - version 5.2 equivalent command to "service unsupported-transceiver"
Unfortunately the new switches do not support these commands for shady SFP/SFP+'s. It has always been a unofficial command anyway. If the command is not there, the only thing you can do is to tweak ...
- 1,508
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