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- About sathvik k v
02-01-2019
sathvik k v
Member since
08-05-2013
Participant
03-27-2018
12:10 AM
Well if it was rate limiting you should have seen packet loss and not latency.
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03-25-2018
10:00 PM
From which switch are these outputs? I see some bad version packets. Which version of NTP are you running on switches?
Ntp bad version packets : 28238
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03-23-2018
09:43 AM
Natative VLAN is used for untagged traffic. If native VLAN differe between switches then it wont break the trunk rather CDP throws error message. for example you connect switch A to switch B, their native VLAN must be VLAN x on both switches.But if any Switch A has VAN x and Switch B has VLAN Y then you get error message.
By default VLAN 1 i.e default VLAN is used as native VLAN.
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03-23-2018
09:23 AM
Answer is NO as others have mentioned already. I would suggest you to understand in which layer protocol operates and get a clear understanding between Layer-2 and Layer-3.
Happy Reading:)
-Sathvik
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03-23-2018
09:19 AM
Memory should not be a problem unless there is some process which pulls a lot of memory, you can check using show memory usage and look for free memory.
Check CPU utilization while the issue re occurs and monitor for some time.
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03-23-2018
08:02 AM
from show version we can see this was due to a bus error.
System returned to ROM by bus error at PC 0x4338CBE0, address 0x2002039 at 19:03:41 IST Thu Mar 22 2018
System encounters a bus error when the processor tries to access a memory location and fails. this could be a software or hardware issue. I would suggest to get a TAC opened.
if you want to troubleshoot further you can refere.
https://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/ios-software-releases-121-mainline/7949-crashes-buserror-troubleshooting.html
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03-22-2018
09:52 PM
So 6509 is NTP server to other two switches and you cant see them to be in Sync? Can you share configuration and output of the commands:
show ntp status
show ntp association
show ntp association detail.
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03-22-2018
09:45 PM
Can you share configuration of port in router and VLAN configuration. Also show vlan.
-Sathvik
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03-22-2018
09:15 PM
If health of switch is good, we need to check connectivity between switch and router. Though we don't see any errors on the link i would go ahead and change the port on the switch for testing.
Would you be able to pull a packet capture spanning the uplink of the switch?
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03-21-2018
11:41 PM
EIGRP vs OSPF debate, remember both are great protocols, each with its strengths and its weaknesses. It depends on how you design you network keeping in mind the path ahead. Personally i prefer OSPF and feel it has more control for a larger network. If you are running to protocols for example BGP in WAN and any IGP for LAN for smaller sites i would prefer EIGRP+BGP.
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03-21-2018
11:25 PM
Hello, If there is no problems reaching WAN router but you have slowness reaching the switch connected to router i would check the physical path between route and switch. Have you looked at interfaces for error/drops etc on both sides ? I see CPU utilization is around 30%, was this taken while you were facing latency issue? Have you looked at memory of the switch? -Sathvik
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03-21-2018
11:07 PM
Which switch models are you testing? which column are you referring to as packet loss? Usually larget sized packets are more prone to packet loss than smaller sized packet. Larger the size of the packets the fewer the packets that can be queued in the buffer. Thus large sized packets more easily fill the buffer than small sized packets, and cause packet drop. Large packets also take longer to be received, queued, and transmitted than small packets. -Sathvik
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03-21-2018
10:50 PM
Hello,
Few months back i was looking advantages of TAP over SPAN. I found this URL which helped me understand better. Hope this helps.
https://observer.viavisolutions.com/includes/popups/taps/tap-vs-span.php
Regards,
Sathvik
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03-25-2018 10:00 PM
From which switch are these outputs? I see some bad version packets.
Which version of NTP are you ru...
Created by
sathvik k v
in Switching
03-23-2018 09:43 AM
03-23-2018 09:43 AM
Natative VLAN is used for untagged traffic. If native VLAN differe
between switches then it wont bre...
03-23-2018 09:23 AM
Answer is NO as others have mentioned already. I would suggest you to
understand in which layer prot...
03-23-2018 09:19 AM
Memory should not be a problem unless there is some process which pulls
a lot of memory, you can che...
Created by
sathvik k v
in Switching
03-23-2018 08:02 AM
03-23-2018 08:02 AM
from show version we can see this was due to a bus error. System
returned to ROM by bus error at PC ...
03-22-2018 09:52 PM
So 6509 is NTP server to other two switches and you cant see them to be
in Sync? Can you share confi...
03-22-2018 09:45 PM
Can you share configuration of port in router and VLAN configuration.
Also show vlan. -Sathvik
03-22-2018 09:15 PM
If health of switch is good, we need to check connectivity between
switch and router. Though we don'...
03-21-2018 11:41 PM
EIGRP vs OSPF debate, remember both are great protocols, each with its
strengths and its weaknesses....
03-21-2018 11:25 PM
Hello,If there is no problems reaching WAN router but you have slowness
reaching the switch connecte...
Created by
sathvik k v
in Switching
03-21-2018 11:07 PM
03-21-2018 11:07 PM
Which switch models are you testing? which column are you referring to
as packet loss?Usually larget...
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| Date Registered | 08-05-2013 09:13 AM |
| Date Last Visited | 02-01-2019 02:17 AM |
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