Thursday 6 October 2016

Cisco Nexus 5000 Serieis.Upgrade Steps

Step 1
Download the NX-OS Kick Start and NX-OS System Software files to your TFTP server.

Step 2
Make sure that Nexus 5000 Switch has the enough space to install the new image files by using NX-OS command “ dir bootflash”. If there is enough space you are free to install the new NX-OS image files.

Step 3
If there is no enough memory delete old image files using NX-OS command
Delete boothflash: (kickstart image name)
Delete bootflash:  (system image name)
SF01-MB-1256-010# delete bootflash:n5000-uk9-kickstart.5.0.3.n1.1a.bin
SF01-MB-1256-010# delete bootflash: n5000-uk9.5.0.3.n1.1a.bin

Step 4
Copy the new kickstart and system images to the switch bootflash by using a transfer protocol such as ftp, tftp, scp, or sftp. The examples in this procedure use tftp. Use the following NX-OS command to copy the kick start and image file
Make sure that the TFTP server is started
SF01-MB-1256-010# copy tftp bootflash:

Step 5
Enter the install all NX-OS command to install the new images, specifying the new image names that you downloaded in the Step 1 as shown below


Once all the files are installed the switch will restart and reload with the new Image files.

Packet Capture inside Cisco Catalyst 3560 and 3750 ( Embedded Packet Capture)


1. Access List Creationswitch3560(config)#ip access-list extended cap1testaclswitch3560(config-ext-nacl)#permit icmp any anyswitch3560(config-ext-nacl)#^Zswitch3560#sho ip access-lists cap1testaclExtended IP access list cap1testacl 10 permit icmp any any

2. Monitor Capture Buffer Creationswitch3560#monitor capture ? buffer Control Capture Buffers point Control Capture Pointsswitch3560#monitor capture buffer ? WORD Name of the Capture Bufferswitch3560#monitor capture buffer cap1testbuffer ? circular Circular Buffer clear Clear contents of capture buffer export Export in Pcap format filter Configure filters limit Limit the packets dumped to the buffer linear Linear Buffer(Default) max-size Maximum size of element in the buffer (in bytes) size Packet Dump buffer size (in Kbytes) <cr>switch3560#monitor capture buffer cap1testbuffer size 2048 ? circular Circular Buffer linear Linear Buffer(Default) max-size Maximum size of element in the buffer (in bytes) <cr>switch3560#monitor capture buffer cap1testbuffer size 2048 max-size ? <68-9500> Element size in bytes : 9500 bytes or less (default is 68 bytes)switch3560#monitor capture buffer cap1testbuffer size 2048 max-size 1500 ? circular Circular Buffer linear Linear Buffer(Default) <cr>switch3560#monitor capture buffer cap1testbuffer size 2048 max-size 1500 circular ? <cr>switch3560#monitor capture buffer cap1testbuffer size 2048 max-size 1500 circular access-list Set access listswitch3560#monitor capture buffer cap1testbuffer filter access-list ? <1-199> IP access list <1300-2699> IP expanded access list WORD Access-list nameswitch3560#monitor capture buffer cap1testbuffer filter access-list cap1testacl ? <cr>switch3560#monitor capture buffer cap1testbuffer filter access-list cap1testaclFilter Association succeededswitch3560#sho monitor capture buffer ?
WORD Name of the Capture Buffer
all All capture buffers
merged Merged View of Capture Buffers
switch3560#sho monitor capture buffer cap1testbuffer parameters
Capture buffer cap1testbuffer (circular buffer)
Buffer Size : 2097152 bytes, Max Element Size : 1500 bytes, Packets : 0
Allow-nth-pak : 0, Duration : 0 (seconds), Max packets : 0, pps : 0
Associated Capture Points:
Configuration:
monitor capture buffer cap1testbuffer size 2048 max-size 1500 circular
monitor capture buffer cap1testbuffer filter access-list cap1testaclswitch3560#monitor capture ?
buffer Control Capture Buffers
point Control Capture Points
switch3560#monitor capture po
switch3560#monitor capture point ?
associate Associate capture point with capture buffer
disassociate Dis-associate capture point from capture buffer
ip IPv4
ipv6 IPv6
start Enable Capture Point
stop Disable Capture Point
switch3560#monitor capture point ip ?
cef IPv4 CEF
process-switched Process switched packets
switch3560#monitor capture point ip pr
switch3560#monitor capture point ip process-switched ?
WORD Name of the Capture Point
switch3560#monitor capture point ip process-switched cap1testpoint ?
both Inbound and outbound and packets
from-us Packets originating locally
in Inbound packets
out Outbound packets
switch3560#monitor capture point ip process-switched cap1testpoint bo
switch3560#monitor capture point ip process-switched cap1testpoint both ? <cr>
switch3560#monitor capture point ip process-switched cap1testpoint bothswitch3560#


3. Attach Buffer to Filterswitch3560#monitor capture buffer cap1testbuffer filter ?switch3560#monitor capture buffer cap1testbuffer filter cap1testacl


4. Verify Buffer Configurationswitch3560#sho monitor capture buffer ?
WORD Name of the Capture Buffer
all All capture buffers
merged Merged View of Capture Buffers
switch3560#sho monitor capture buffer cap1testbuffer parameters
Capture buffer cap1testbuffer (circular buffer)
Buffer Size : 2097152 bytes, Max Element Size : 1500 bytes, Packets : 0
Allow-nth-pak : 0, Duration : 0 (seconds), Max packets : 0, pps : 0
Associated Capture Points:
Configuration:
monitor capture buffer cap1testbuffer size 2048 max-size 1500 circular
monitor capture buffer cap1testbuffer filter access-list cap1testacel

5.Associate Capture Point to Capture Bufferswitch3560#monitor capture point associate ?
WORD Name of the Capture Point
switch3560#monitor capture point associate cap1testpoint ? WORD Name of the Capture Buffer
switch3560#monitor capture point associate cap1testpoint cap1testbuffer ? <cr>
switch3560#monitor capture point associate cap1testpoint cap1testbuffer

5.verify Capture Point
switch3560#sho monitor capture point cap1testpoint ? | Output modifiers
<cr>
switch3560#sho monitor capture point cap1testpointStatus Information for Capture Point cap1testpointIPv4 Process
Switch Path: IPv4 Process , Capture Buffer: cap1testbufferStatus : Inactive
Configuration:
monitor capture point ip process-switched cap1testpoint both


6.Start Capture Pointswitch3560#monitor capture point start ?
WORD Name of the Capture Point
all All Capture Points
switch3560#monitor capture point start cap1testpoint ? <cr>
switch3560#monitor capture point start cap1testpointswitch3560#sho moni cap poi cap1testpointStatus Information for Capture Point cap1testpointIPv4 Process
Switch Path: IPv4 Process , Capture Buffer: cap1testpointStatus : Active
Configuration:
monitor capture point ip process-switched cap1testpoint both


7. Stop after required time
switch3560#monitor capture point stop cap1testpoint8.View Statiticsswitch3560# show monitor capture buffer cap1testbuffer parametersCapture buffer cap1testbuffer (circular buffer)Buffer Size : 2097152 bytes, Max Element Size : 1500 bytes, Packets : 14
Allow-nth-pak : 0, Duration : 0 (seconds), Max packets : 0, pps : 0
Associated Capture Points:
Name : cap1testpoint, Status : InactiveConfiguration:
monitor capture buffer cap1testbuffer size 2048 max-size 1500 circularmonitor capture point associate cap1testpoint cap1testbuffermonitor capture buffer cap1testbuffer filter access-list cap1testacl


9.Export to TFTPswitch3560# monitor capture buffer cap1testbuffer export ? flash: Location to dump buffer
ftp: Location to dump buffer
http: Location to dump buffer
https: Location to dump buffer
rcp: Location to dump buffer
scp: Location to dump buffer
tftp: Location to dump buffer
switch3560# monitor capture buffer cap1testbuffer export tftp://192.168.100.1/cap1testbuffer.pcap!!