What is the best way to achieve implementation of 42 cisco switches at client location? Also I need help with how to prepare or what to include in SOW(scope of work). I really appreciate your help.

I have a server with multiple virtual servers on it, was wondering is adding a network card with more ports will help for performance, since I use gigabit switches so the most throughput on the network is a gigabit how will I gain with a card with 4 ports each a gigabit if the switch highest capacity of the switch is a gigabit plus the switch is handling not only the server?

Any recommendation for a nic card and if not much more expensive can do nic teaming.

We have a couple of Cisco 3560 devices and since they are end of life now, I can't get support.  I wanted to upgrade the IOS to the latest version, but need assistance.  We presently have the following IOS version:

C3560 Software (C3560-IPBASE-M), Version 12.2(35)SE5,

I also wanted to know which version would be best, if optionable.

I have a Cisco nexus switch (48-port) and wanted to setup for the first 24 ports on a vlan and the next 24 ports on a separate VLAN.  How do I do this on a Nexus switch?

I have a lab environment with 7 48-port switches (Ubiquiti ES-48-500W).

All of them are connected to 3 16-port aggregation switches (Ubiquiti ES-16-XG) via fiber.

All of the switches are brand new, and all of them are in the same room. Fiber modules are brand new, as are the fiber cables.

The only computers plugged into this network are:

- one windows 2016 Server domain controller with DNS (but no internet access)
- one linux VM running UNMS (Ubiquiti's free switch management software)
- one windows 10 workstation running a third-party program called EMCO Ping Monitor

Before deploying these switches to my production environment, I conigured each switch and joined them all to UNMS.

I have the latest firmware installed on each switch.

Basically, just sitting there doing nothing, UNMS reports outages all throughout the day. Sometimes the outage is for a few seconds. Sometimes the outage is more than 20 seconds. And the outage is not between specific switches. Switch 104 will go down for a few seconds. Then switch 114. Then switch 100. It's all over the place.

Each 48-port switch is connected to 2 ES-16-XGs for redundancy. Using spanning tree protocol.

Should I be concerned about this? Are intermittent drops "normal" for switches? Or does this indicate a problem?

Thinking the UNMS /may/ not be 100% accurate (since it is still in beta), I installed a third-party program called EMCO Ping Monitor on a Window 10 workstation, which I then plugged into a…

Hello,

I am trying to add a 3750x to a stack. It is a mixed stack and all the members only use non-cryptographic IPBASE images.

Switch   Ports  Model              SW Version              SW Image            
------   -----  -----              ----------              ----------          
     1   52     WS-C3750G-48TS     12.2(35)SE5             C3750-IPBASE-M      
     2   52     WS-C3750G-48TS     12.2(35)SE5             C3750-IPBASE-M      
*    3   30     WS-C3750E-24PD     12.2(35)SE5             C3750E-UNIVERSAL-M  

I am trying to add the below
WS-C3750X-48P      12.2(55)SE10           C3750E-IPBASEK9-M  

As you can see the 3750x I am trying to add has the IPBASEK9 image. Does anyone have a mixed cryptographic/non-cryptographic image environment.

These will not stack. The stack does not even seem to recognize the switch is there at all or gives version mismatch.

Is there a way I can downgrade the IPBASEK9 to just IPBASE? I am not in a position to get a K9 license for the other switches.

Thanks!

Experts, I am looking for a paid CA Devtest Service Virtualization tutorial online. The tutorial offered by CA requires me to provide a company email address which I can't at the moment. Does anyone have information about any websites that offer the training? Any inputs appreciated.

I just picked up 2 used Cisco Catalyst 3750G-48TS-S switches and  I am  getting this error message.  Can anyone tell me how to correct it?

Base ethernet MAC Address: 00:1c:57:18:9a:80
Xmodem file system is available.
The password-recovery mechanism is enabled.
Initializing Flash...
flashfs[0]: 0 files, 1 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 32514048
flashfs[0]: Bytes used: 1024
flashfs[0]: Bytes available: 32513024
flashfs[0]: flashfs fsck took 7 seconds.
...done Initializing Flash.
Boot Sector Filesystem (bs) installed, fsid: 3
done.
Loading "flash:c3750-ipbasek9-mz.122-35.SE2.bin"...flash:c3750-ipbasek9-mz.122-35.SE2.bin: no such file or directory

Error loading "flash:c3750-ipbasek9-mz.122-35.SE2.bin"

Interrupt within 5 seconds to abort boot process.
Boot process failed...

The system is unable to boot automatically.  The BOOT
environment variable needs to be set to a bootable
image.

We have a small number of Cisco 3560 switches and most are presently on IOS version 12.2 and need to move them to the latest and greatest IOS version.  Since most of them do not have the SSH feature that we'd like to move to for connection, This is one reason for the upgrade.  I also need the process for migrating the IOS version as well on the switches.  

I'm assuming that there are no drawbacks to moving to the new IOS and would also like to know the time the switch should take for about 10 devices?

Hi All,

I had capture the packet within our intranet where I place the sniffing tool at core switch to only capture conversation between all client to one server. I had observer the almost packet was captured is TCP SYN/ACK packet and TCP RST packet. The TCP SYN packet only below then 10% of captured packet. Its is abnormal in happen in this conversation?

I need to create a document, not sure of the proper name, but it has to do with explaining why we need an additional Cisco switch and other hardware, as spare, in case we loose another switch.  Can someone share such a document as a template so I can provide to management for approval?

Jul 18 08:29:03.166: %IP-3-LOOPPAK: Looping packet detected and dropped -
src=10.15.13.69, dst=172.22.1.164, hl=20, tl=56, prot=1, sport=0, dport=0
in=Vlan122, nexthop=172.22.1.237, out=Vlan122
options=none -Process= "IP Input", ipl= 0, pid= 154
-Traceback= 115ADDF0z 119EFE1Cz 119F0030z 119F0CD4z 119F28ACz 119DE990z 119DF3F0z 119DF4E0z
119DF774z 10E75B4Cz 10E71B28z
Jul 18 08:39:22.743: %IP-3-LOOPPAK: Looping packet detected and dropped -
src=10.15.13.69, dst=172.22.1.164, hl=20, tl=56, prot=1, sport=0, dport=0
in=Vlan122, nexthop=172.22.1.237, out=Vlan122
options=none -Process= "IP Input", ipl= 0, pid= 154
ie-gsmr-cisco2#show interface vlan122
Vlan122 is up, line protocol is up
Hardware is Ethernet SVI, address is 7081.051b.21ff (bia 7081.051b.21ff)
Internet address is 172.22.1.237/29
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes
L3 out Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes
IPv6 L3 in Switched: ucast: 0 pkt, 0…

Need to recover passwerd for cisco switch 4507R-E without removing the configuration