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Community Activity

DNA Essentials, what use does it have?

Our MSP recommends the DNA Essentials license. I've recently taken over and it's been renewed a few times. I see this is for Catalyst Center? I'm looking into how I can use Catalyst Center to see if it's worth it, (we're a small shop with 6 stack and...

tedteeger by Level 1
  • 1 Views
  • 0 replies
  • 0 Helpful votes

SD Access into traditional networking

Hi, I am new to Software-Defined Network. Currently upgraded a building of old switches into Catalyst 9K series with still a traditional networking.  If implementing SD Access into the traditional networking by using DNA Center, do I have to manually...

FTD HA Failover

During the FTD HA upgrade from FMC, if first standby is failed /corrupted during the upgrade ,will FMC will  try to upgrade other devices in the failover pair or will abort the upgrade?.

nurairtt by Level 1
  • 60 Views
  • 2 replies
  • 0 Helpful votes

Resolved! Send specific internal traffic out over new ISP

I have a new isp on a 2nd outside interface. I would like to send all traffic from one ip range and only that range out over the new ISP.Currently Here is what I haveinterface GigabitEthernet1/1nameif Outsidesecurity-level 0ip address a.a.a.a 255.255...

Shawn M by Level 1
  • 78 Views
  • 4 replies
  • 0 Helpful votes

Resolved! 註冊書籍問題

有人能告訴我答案嗎? 我買的是中文書,但我並不曉得原文版裡面的標題是長甚麼樣子,怎麼試都成功不了,再幫幫忙了!  

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noob ccna by Level 1
  • 779 Views
  • 3 replies
  • 0 Helpful votes

MTU on subinterfaces

So normally a standard interface has an MTU of 1500.When creating a sub-interface on a router (or using an SVI on switch), should the MTU be manually lowered to 1496 to account for the extra 4 bytes?Everything just seems to work without this, so I am...

EIGRP with ASA in multiple context flapping

hi Cisco,I am using below topology in my lab where ASA in multiple context - C1 and C2 sharing the same physical interface, in different VLANs (sub interface) is not able to establish EIGRP neighborship with 2 cisco routers (point to point). Although...

dhrtech1_0-1715186241740.png
dhr.tech1 by Spotlight
  • 205 Views
  • 8 replies
  • 0 Helpful votes

Resolved! C3650C与Esxi连接

各位大佬,小弟有3台Dell R430Esxi服务器 2台C3650C交换机以及一台2811路由器,想废物利用搭建一个vSphere的虚拟实验环境。大概的网络结构为:每台R430的2块网卡在DCUI里做物理绑定作为管理网卡,分别连接两台C3650C的f0/1-3口,这3个口划为VLAN10. 每台R430的另外两块网卡分别连接C3650C的f0/10-12网口,这3个口设为Trunk。C3650C再接入到2811路由器,该路由器的一个网口连接到互联网,以便实现虚拟机的上网以及对服务器的远程管理功...

mcwolf by Level 1
  • 75 Views
  • 2 replies
  • 0 Helpful votes

Output Drops between WS-C3850-48T and WS-C2960X-24PD-L

Hi AllI've inherited a newtwork that includes the C3850 and we've installed the C2960X. These are hooked up via copper ethernet and have a very simple configurationC3850 interface GigabitEthernet2/0/2 description Uplink to C2960X switchport mode tr...

Iperf test through ASA

Hello Folks, I have a pair of ASA5516 with HA mode, ISP provides a high-speed WAN 500Mbps up/download, while doing some speed tests recently we noticed that all our tests from the inside network are not bypassing 100mbps, I checked all inside/outside...

AirSail by Level 1
  • 454 Views
  • 18 replies
  • 0 Helpful votes

what causes a topology change in rapid-pvst mode

hi all,Thanks for your reply!physical topology is very simple: core switch stack (2x WS-C6506-E) connects to access switch via port-channel, no more redundant link. I see lots of topology change logged from core switch, for example:Number of topology...

seanxiao by Level 1
  • 146 Views
  • 7 replies
  • 0 Helpful votes