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- About Hele Du
02-18-2019
Stats
Member since
12-09-2012
99
Posts
5
Helpful
0
Solutions
04-25-2018
07:55 PM
Hi Experts,
Have a good day!
Is there possible to deploy a three tiers VXLAN fabric?
For example, Leaf nodes-Spine nodes-intermediate node--leaf node.
Our customer already have a VXLAN fabric composed of Arista devices for HPC application. We would like to use Neuxs 9300+9500(another Fabric) for extend ths HPC application Cluster but don`t enable RR on nexus 9500, the RR function still on Arista device in old fabric.
I attached this design image into this post.
Any suggestion or limitation for this design?
... View more
Labels:
07-27-2017
01:07 AM
Hi Experts,
I always have a question about ACI`s service chain.
The definition of Serivce chain is can provide applications traffic steering to some service nodes,like firewall, IPS,SLB.
Usually,SLB is provides a VIP to applicaiton, so the applicaiton can directly routing to SLB. SLB does not need any traffic steering.
Is there have some other scenario for traffic steering to SLB?
... View more
Labels:
07-14-2017
08:55 PM
How much port license count will occupy if I am using 16G FC, just one or two?
... View more
07-13-2017
10:52 PM
Thanks, rnmcgee,
If so , does the storage license on N5K means per port on 5k or on FEX?
... View more
Created by
Hele Du
in Server Networking
in Server Networking
07-12-2017
08:27 PM
07-12-2017
08:27 PM
Hi Experts,
As Far as I know, only the 5672UP can support native FC, which can directly connected to a FC host.
Deos the N2348UPQ must directly connected to 5672UP if running in FC FEX mode?
The following is guideline in configuration guide.
"The FC ports on Nexus 2348UPQ are supported only on the Cisco Nexus 5600 switches."
I would like to double check if I am using a N5648Q, it going to be working.
Thanks.
... View more
Labels:
09-20-2016
08:28 AM
Hi Experts,
As I know, Progammable VXLAN Fabirc have anycast gateway which reside on every TOR(VTEP). The layer3 traffic will forward by local VTEP.
What about if I want to deny some traffic between two subnets or VNIs?
I must configure ACL on every TOR or is there a flexible way can accomplish this ?
Thank you so much!
... View more
Labels:
Created by
Hele Du
in Intelligent Automation
in Intelligent Automation
09-01-2016
08:04 AM
09-01-2016
08:04 AM
Hello Experts,
I am very interesting in UCS Director, unfortunately I don`t have a LAB environment.
I have some question need to confirmed, it is really my appreciate if you have any suggestion.
Is there possible integrate Nexus with UCSD Directly without APIC?
If it possible, Does Workflow can also using for orchestrating some network resource via UCSD to Nexus directly ?
... View more
Labels:
07-31-2016
11:35 PM
Hi Marvin,
I think It hard to read if I am using native CLI command for customer....
I suggest customer to buy a external syslog server for this.
... View more
Created by
Hele Du
in Security Management
in Security Management
07-30-2016
02:25 AM
07-30-2016
02:25 AM
Hi experts,
here is a governmental rule in our country, it must be provide at least 90 days NAT logs(or called source trace) if the market or hotel provide internet services.
I just want to know, does any cisco device can support this ?
The ASA or firepower with internal disk and ISE?
Thanks a lot.
... View more
Labels:
07-30-2016
02:13 AM
Hi Leo,
I got it.
Now I know I must manually set the "control" base on netflow information, thanks.
... View more
Created by
Hele Du
in Other Network Architecture Subjects
in Other Network Architecture Subjects
07-12-2016
03:15 AM
07-12-2016
03:15 AM
Hi Experts,
Recently, I am interesting in Cisco AVC solution.
I knew that it using some technique together to get traffic visibility, like NBAR and NetflowV9.
But I have no idea how to "Control" the traffic in AVC.
Is there must have some pre-defined QOS?
Can I use some dynamic policy to control traffic according to the consumption of traffic on interface ?
... View more
Labels:
07-09-2016
06:44 AM
Hi Patoberli,
Thanks for your answer.
I also think so, it must be a specific client can support turboQAM.
... View more
Created by
Hele Du
in Wireless Security and Network Management
in Wireless Security and Network Management
07-09-2016
02:52 AM
07-09-2016
02:52 AM
Hi Experts,
I have a little confusing on external portal authentication of WLC.
If I am using external portal on WLC, what action will WLC do ?
First ,The WLC redirect http or https traffic of client to external portal and intercept username and password, then send to AAA server to authentication.
Sencond, The WLC redirect http or https traffic of client to external portal, then external portal sending authentication failed or success message to WLC. The WLC will permit or deny client depending on external portal authentication message.
From my opinion, the first action is correct. But HTTPS is encrypted, how can WLC intercept username and password if using a HTTPS external portal?
... View more
06-26-2016
06:17 PM
Hi Rasika,
This index is very useful. I stored this.
The Broadcom have a technology called TurboQAM, It can use 256QAM on 40Mhz for 802.11n, like Index 9 above.
... View more
04-25-2018
Hi Experts, Have a good day! Is there possible to deploy a three tiers
VXLAN fabric? For example, Le...
07-27-2017
Hi Experts, I always have a question about ACI`s service chain. The
definition of Serivce chain is c...
Created by
Hele Du
in Server Networking
07-12-2017
07-12-2017
Hi Experts, As Far as I know, only the 5672UP can support native FC,
which can directly connected to...
09-20-2016
Hi Experts, As I know, Progammable VXLAN Fabirc have anycast gateway
which reside on every TOR(VTEP)...
09-01-2016
Hello Experts, I am very interesting in UCS Director, unfortunately I
don`t have a LAB environment. ...
07-31-2016
Hi Marvin, I think It hard to read if I am using native CLI command for
customer.... I suggest custo...
Created by
Hele Du
in Security Management
07-30-2016
07-30-2016
Hi experts, here is a governmental rule in our country, it must be
provide at least 90 days NAT logs...
07-30-2016
Hi Leo, I got it. Now I know I must manually set the "control" base on
netflow information, thanks.
Created by
Hele Du
in Other Network Architecture Subjects
07-12-2016
07-12-2016
Hi Experts, Recently, I am interesting in Cisco AVC solution. I knew
that it using some technique to...
07-09-2016
Hi Patoberli, Thanks for your answer. I also think so, it must be a
specific client can support turb...
07-09-2016
Hi Experts, I have a little confusing on external portal authentication
of WLC. If I am using extern...
Public Statistics
| Date Registered | 12-09-2012 08:13 AM |
| Date Last Visited | 02-18-2019 10:13 PM |
| Total Messages Posted | 99 |
| Total Helpful Votes Received | 5 |
