hiWe had following critical error on the Nexus switch on 3rd July which caused full module restart and all fiber links going down. We need to investigate the root cause for this issue and raise support call for the same:2013 Jul 3 16:24:51 ADDC-Core...
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Forum Posts
hi all,i turned on jumbo frame on my 3750/2960/asa-5515x. The interfaces are on 9000 after I reload but my 3750/2960 is still on "system mtu routing 1500". Do I need to put it also on jumbo frame? What will be the behaviour on old system like XP (...
HelloOne of my customer has CISCO 881 K9 and like to add security option to the router. I am having problem in locating the right SW license option to order, please guide me to the right P/N to order.Ronen
Resolved! Loopback interfaces vs Management VLAN
Hi,I wondering about best practices when it comes to addressing. For a new network I thought I would start it right by creating a loopback address and having that the address configured in TACACS and SolarWinds and that being the address we use to SS...
Hi all,I have quite a problem at my new employer. A few years ago a company was employed to install and configure a wireless network. The company installed:Cisco WS-C3560-8PC-S 3560 8-PORT Poe Catalyst SwitchCisco WLC5264x LAP521 Access PointsThe com...
Resolved! Single nexus 5K with fabric extenders
Hi,I have a bit strange issue. One of our subsidary sites has only following Nexus components;one 5K ( with Layer 3 board ) one 2248TP two 2232TMone 3048TPThere are servers which needs to be connected to these infra. Following are my doubts;1. Can i ...
Resolved! DHCP excluded address
Vlan 602 lan10.202.41.128/27 usable range 10.202.41.129 - 10.202.41.190usable range from 129 - .158Vlan 603 wifi10.202.41.160/27 usable range 10.202.41.161 - 10.202.41.189I want to use the the range .159 - 189 ...
Hi everybodyPlease have a look at the following link.http://routingandswitching.blogspot.com/2004/10/t1-line-coding-framing-and-signaling.htmlFrom the above linkT1 framing is either D4 Super Frame (SF) or Extended Super Frame (ESF). The difference i...
Resolved! CRC check on T lines
HI every bodyLet say we have a t1 line as shown below:CPE1----T1--------C01-----------T1--------C0---------T1--CPE2Let say we are using ESF framing. In ESF, we have CRC that can be used to detect errors. My question :is this error detection by crc...
Hi All,I am planning an ISSU upgrade on my nexus 7000. On this chassis there are also Nexus 2000 connected. Since they don't support vpc, all fexes are connected to a single chassis. (but different card).The chassis will upgrade without interruption,...
We are in the process of using AT&T's switched ethernet to transport. They're using a single VLAN tag to carry traffic from our 70 locations back to the core. I have a 4506 at the distribution and 6509 at the core.To simply, I have an IP address on...
Resolved! Trying to Understand IP Addresses
I've been studying routing, and although I feel like I have a basic idea of routing and the different protocols associated with it, I've always had this IP address question.If I you are given the whole network 70.70.0.0/16 by your ISP (I'm using clas...
Hi we have a remote access vpn with single pool say 10.1.1.1 to 10.1.1.254we have 10 svi on l3 switch.on each svi we have created access-list so that each vlan should not communicate(ping etc) to each other.Assume two problem is if a user from outsi...
Hello Guys,I know this is HP related but the forums over there are dire!..............Right I have just received 8x HP 2530-48G-PoE+ Switch (J9772A), applied a very basic config to these and tagged the port on the core (5406zl), now when its all co...
HI my cisco 7606 router engine is RSP720-3C-GE，I'm doing is static nat on this router. My company has about 4000 employees, All through the static NAT access to the internal server. I want to consult on the 7606 router RSP720-3C-GE en...
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