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- About dominic.caron
02-15-2019
dominic.caron
Contributor
I've have been assuming the role of network architect and engineer for the last 10 years for a major research university in canada. In those years, I have aquired lots of experience in troubleshooting L2, datacenter and security issues.
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07-15-2003
644
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291
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60
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02-08-2019
07:11 AM
Using 3636C as L3 core switch and I see a lots of InDiscards (around 0.15% on all interface) . The data rate of the interfaces is not high, like 1Gbps on 10G and 40G links.
Here is one interface :
RX 234305677 unicast packets 15428 multicast packets 0 broadcast packets 234321105 input packets 75820873750 bytes 15016777 jumbo packets 0 storm suppression packets 0 runts 0 giants 0 CRC 0 no buffer 0 input error 0 short frame 0 overrun 0 underrun 0 ignored 0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop 0 input with dribble 353513 input discard 0 Rx pause
Any ideas?
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11-29-2016
06:22 AM
Hi,
I'm experimenting with ISE and integration with an active-directory. When I run the test, some report a failure. What are those tests ?
DNS A record high level API query
DNS A record low level API query
DNS SRV record query
DNS SRV record size
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10-20-2016
07:05 AM
The system MTU is global and apply to all ports on the switch. That does not mean every hosts connecting to it will use jumbo frame. The MTU of the host need to be configure with jumbo value too. When dealing with jumbo frame, you have to consider :
1. The MTU of the hosts.
2. The Switch L2 MTU
3. (If there is a router or a L3 Vlan interface on the switch) The Switch L3 (SVI) IP MTU
4. The protocol used.....TCP will adjust to different MTU on the hosts....UDP is tricky.
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02-18-2016
10:27 AM
Wireless controler authentication user using PEAP-mschapv2. I see a lot of authentication lookup in acs-view. What's a lookup vs full authentication?
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02-18-2016
10:27 AM
Wireless controler authentication user using PEAP-mschapv2. I see a lot of authentication lookup in acs-view. What's a lookup vs full authentication?
... View more
Labels:
08-27-2015
07:24 AM
Hi, I'm in charge of the design of a big campus network and I have benn using Nexus 7000-5500 and Catalyst products for severals years. Cisco might not like it but I would go for the Catalyst in the Core. The Nexus line is in a race with other vendors for the lastest best new wow feature. Dont expect the level of stability of the Catalyst line.
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08-27-2015
06:35 AM
The output look ok. Looks like you remove the ttl-threshold on the some router. Can you describe the problem and your network topologie?
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08-27-2015
06:17 AM
Hi I know you are not configuring GETVPN but it's the perf number should be the same....ipsec is ipsec. Refer to table 4 of this document http://www.cisco.com/c/dam/en/us/products/collateral/security/group-encrypted-transport-vpn/GETVPN_DIG_version_1_0_External.pdf The max speed with the onboard Accelerator if somewhere between 10 and 25 Mbps for that router.
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02-24-2014
07:37 AM
Some people were still using the old AT&T standard, T568B only make it an official standard.
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02-24-2014
07:13 AM
Hi, I think its: ip pim rp-address CORE1IP group-list (allowed multicast group)
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Created by
dominic.caron
in Switching
in Switching
11-10-2013
01:24 PM
11-10-2013
01:24 PM
Hi, Let say you are on a shared network that work like an hub. The udp hello are part of the discovery process. The device can build multiple peering on the same interface. The tcp keepalive are part of the peering process and not discovery. Sent from Cisco Technical Support Android App
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10-21-2013
06:57 AM
1/47 and 1/48 are in VPC port channel. (SR and LR SFP+) Ethernet1/47 transceiver is present type is 10Gbase-SR name is CISCO-SUMITOMO part number is SPP5100SR-C1 revision is A serial number is SPC nominal bitrate is 10300 MBit/sec Link length supported for 50/125um OM2 fiber is 82 m Link length supported for 50/125um OM3 fiber is 300 m Link length supported for 62.5/125um fiber is 26 m cisco id is -- cisco extended id number is 4 Ethernet1/48 transceiver is present type is 10Gbase-LR name is CISCO-EXCELIGHT part number is SPP5101LR-C1 revision is A serial number is ECL nominal bitrate is 10300 MBit/sec Link length supported for 9/125um fiber is 10 km cisco id is -- cisco extended id number is 4
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02-08-2019
Using 3636C as L3 core switch and I see a lots of InDiscards (around
0.15% on all interface) . The d...
11-29-2016
Hi, I'm experimenting with ISE and integration with an active-directory.
When I run the test, some r...
10-20-2016
The system MTU is global and apply to all ports on the switch. That does
not mean every hosts connec...
02-18-2016
Wireless controler authentication user using PEAP-mschapv2. I see a lot
of authentication lookup in ...
02-18-2016
Wireless controler authentication user using PEAP-mschapv2. I see a lot
of authentication lookup in ...
08-27-2015
Hi,I'm in charge of the design of a big campus network and I have benn
using Nexus 7000-5500 and Cat...
08-27-2015
The output look ok. Looks like you remove the ttl-threshold on the some
router. Can you describe the...
08-27-2015
HiI know you are not configuring GETVPN but it's the perf number should
be the same....ipsec is ipse...
02-24-2014
Some people were still using the old AT&T standard, T568B only make it
an official standard.
11-10-2013
Hi,Let say you are on a shared network that work like an hub. The udp
hello are part of the discover...
Public Statistics
| Date Registered | 07-15-2003 10:48 AM |
| Date Last Visited | 02-15-2019 07:15 AM |
| Total Messages Posted | 644 |
| Total Helpful Votes Received | 291 |
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|---|---|
| 5 | |
| 5 | |
| 10 | |
| 4 | |
| 5 |
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