Any recommendations for top of rack switch for within our data centre.Dual power is a requirement, but bandwidth and through put will not be huge as such I have been looking atthe WS-C3560X-48T-L and the Nexus 3048.
View 1 RepliesLucien is a customer support engineer at the Cisco Technical Assistance Center. He currently works in the data center switching team supporting customers on the Cisco Nexus 5000 and 2000. He was previously a technical leader within the network management team. Lucien holds a bachelor's degree in general engineering and a master's degree in computer science from Ecole des Mines d'Ales. He also holds the following certifications: CCIE #19945 in Routing and Switching, CCDP, DCNIS, and VCP #66183
View 1 Replies View RelatedI have a problem to solve in our data center, see attached drawing. HW: Our core switches consists of two stacked C3750 with ip routing. What I want to do is probably simple but I haven't been able to figure out the best method.
VLAN10 and VLAN20 should not be able to communicate with each other. (ACLs?)VLAN10 will have it's own default route/firewall. Both VLAN10 and VLAN20 should be able to send server backups to server in VLAN30. All 3 V LANs come in on a trunk from a pair of stacked C2960-S. I need it to be able to scale if we have 50 VLANs for instance, hopefully without long complicated ACLs. I've been considering VRF's, PBR but can't decide what's the simplest solution to this problem. I have never done this before so I would prefer to start off on the right foot.
I have 6 of these WS-CBS3012-IBM modules that need to be configured but I cannot access the USB console port. I was told I could just get any DB9- to- USB cable and that would work. I did buy a DB9-to-USB cable and it did not work. I looked up the installation guide for this module and it just said the console cable is DB9-to-USB but with no part number.
View 3 Replies View RelatedI'm looking for some input on configuring vPC on the Nexus 3048.I know that it's supported to use 1G interfaces for the vPC Peer-Link, but using 2x1G for the Peer-Link would make the Peer-Link a bottle-neck if the 10G ports are used in a vPC. What about using 2x10G ports for the Peer-Link and using the remaining 10G ports in one, or potentially two vPCs. Should that work or is it in any way not recommended? The reason I'm asking is that the 10G ports are called "Uplink" ports in the data sheets for the 3048.
We are planning to connect some servers to the 3048s using vPC with each server connected by 4x1G interface (2x1G for each switch), and then we want to connect a Netapp storage system with two controllers using 2x10G each (the controllers are active/passive, so you can think of it as two separate systems). We would connect controller A with vPC 1x10G to each switch, and controller B in the same way with vPC 1x10G to each switch.
Any way of policing traffic on the Nexus 3k platform? I can't find a reference to say policing/shaping is supported.
View 5 Replies View RelatedI am building up vPC on 2 x Nexus 3048 and found that it did not work properly.The current config as follows,
1. OS: n3000-uk9.5.0.3.U2.2.bin
2. Peer link: 10 x 1G (E1/1 - E1/10) on both devices (I am wondering that 1G interface supports vPC Peer-Link. I heard that upgrading to U3.2 image will work for 1G rather than 10G... )
3. They can ping each other via management IPs
4. Edge switches vPC have not been built yet (I am focusing on Peer-Link and vPC role selection)
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I have been assigned the task of trunking VLAN between a Nexus 3048 and a Force10 S4810. This would seem easy enough but I am really having a bear of a time getting it to work. I have devices configured on VLAN 602 on both sides but they just are not talking.
NX0S 3048
interface configuration
----------------------------------
interface Ethernet1/49
switchport mode trunk
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If we configure a Voice and Data VLAn on a switch. And connect EX90 on voice VLAN and PCwith EX90 terminals. Than can we able to share a presentation or data with EX90 or not?
View 3 Replies View RelatedWe are in middle of deploying WiSM2s on our network, from a design point of view i am confused on where to position the WiSM2s. We have 2 DCs and from best practice architecture view WLC should not be placed on the Data Center segment, but it seems that is the only option i have.
DCs host 6509s, i am planning to host 1 WiSM in each DC, all clients will be on seperate subnet. Do you foresee any issues with this deployment or any security issues? authentications are followed as per cisco recommendation, clients authenticated against AD through ACS so it is fairly secure.
How to trace firewall and load balancers placed in data center.
View 6 Replies View RelatedWe have had this issue for a long time in our enterprise. I don't work all the time in networking. I did a CCNA a while ago. We used to have a network manager who set everything up but he left the company. Basically we have this issue that if you connect to Cisco L2TP Remote Access VPN you can't access any resources at our Data Center. Also if you connect directly to the LAN.
View 10 Replies View RelatedWe are planning to purchase an ASA 5505 for a VPN solution for one of our offices. The office has 50-60 user at peak load who would be connecting over the S2S VPN to the datacenter.
From a hardware standpoint, can the ASA 5505 handle this load. The licence is for unlimitedf inside hosts but what is the actual limit on this platform?
i want to know, is c3650G or c3650X switches are already containing rack mounting pack or am i need to buy it seperatly?
View 3 Replies View RelatedI have a question if your Cisco 800 series wireless in a rack mount installation in racks to place the signal strength materials very well ?
View 0 Replies View RelatedI am considering running stacked 3750 L3 switches as the edge of the network, which will connect to the ISP. The ISP would hand off two lines with one to each switch and two lines to each client zone. Does running HSRP, running port channels, or running routing protocols seem like the best option for redundancy?
Lastly, will the 3750 provide all the QoS I should need for restricting each client zone's bandwidth both up and down? Could I get away with a lower model and still get these features?
I have some doubts about the best solution for the design of a mini data center.In the data center there is a 6500 with FWSM module installed, there are some vlans created, all of them in the fwsm module. For example, a back end server to communicate with a server in the front end must always pass through the firewall. My question is, all these flows passing in the firewall does not degrade the speed of communication?What is the best practice, just pass the communications with the WAN in the firewall, and the vlan communication between front end and back end is only set up in 6500?
View 13 Replies View RelatedI wanted to know if any has the Nexus 7009 chassis installed into a 600 wide rack with the sides fitted and if they are experiencing heat issues?
My client will be replacing their aging 6509 chassis with 7009 devices, but the physicals dont tally with the install guidelines for the 7009 series chassis. The current install of the 6509s does not tally with the recommended install guidelines for those either, but they have not expereienced any heat issues...
The 7009 will be fitted with 2xSUP2E, 3x48portSFP-F2E cards and 2x10GSFP-M2 cards with 2x6K PSUs. I am genuinely concerned they may cook these devices, but space restrictions look like vetoing the upgrade to 800 wide racks. Likewise moving to 7010 chassis may prove tricky due to existing other installs within the racks limiting vertical space.
I have some doubts about the best solution for the design of a mini data center.In the data center there is a 6500 with FWSM module installed, there are some vlans created, all of them in the fwsm module. For example, a back end server to communicate with a server in the front end must always pass through the firewall. My question is, all these flows passing in the firewall does not degrade the speed of communication?What is the best practice, just pass the communications with the WAN in the firewall, and the vlan communication between front end and back end is only set up in 6500?
View 6 Replies View RelatedWe will be moving to a new data center in the very near future and with them our WAN IP addresses will be changing. Any best course of action for changing the IP addresses throughout the firewall configuration? Would it be possible/suggested to export the running-config, make the neccessary changes, then import the config? I am familiar with the ASA 5510 only so far as changes are required. It is not something I work with on a regular basis.
View 5 Replies View RelatedWe have backup data center where I am now planning to provide backup internet service ( in the case where there is internet down or power outage at main server room) . I have a pair of Cisco ASA's 5540, one of which I need to move to backup data center ( BDC), Presently I have ADSL router at disaster serve room with static public IP from ISP.
Currently, I am publishing all my internal resources through ASA. Now my questions, if I move Standby ASA to Disaster Server Room. How I can publish the same internal resources through standby ASA and make it standby as active during the down time of main server room
What are the list require for setting up Data Center for either University or Government?
View 4 Replies View RelatedSimple question, does the SF100-24 switch come with the brackets to rack mount it on a standard 19" rack?
View 1 Replies View RelatedIs there a replacement rackmount kit available for a Smart Switch SF200-48?
View 1 Replies View RelatedI lost the rack brackets for my switch in a recent move. Where can I get more?
View 1 Replies View RelatedI just installed a 10 port Cisco SG300-10MP in my office, 9 of the ports are already in use. Connected to it are
PC
Laptop
Notebook
WIFI AP
B&W laser printer
Color inkjet printer
IP camera
Squeezebox SB3
Cat5e connection to basement HP 1810G-24 switch All of these devices are connected via a single Cat5e cable that was installed when the house was built. I had to re-terminate both ends of it when I moved in because the existing terminations were done very poorly. I have no idea how or where the cable is routed, nor what the quality of this Cat5e cable is. It did pass a test using my cable tester.
This single Cat5e is connected to my main HP switch in the basement equipment rack. Both of these switches have mini-GBIC ports that can utilize SFP transceivers and fiber. I priced out 2 MGBSX1 compatible modules along with a 30M multimode fiber patch 'cable' online at under $150. Although it would require at least a couple hours of work (including digging around in the attic and crawl space and drilling some holes), but running the fiber to the basement is very doable.
My question to my far more experienced forum members is if the performance gains would be worth the effort?My server is in the basement, and despite having an Intel GB NIC in my PC I am seeing read speeds of ~23MBs and writes of ~49MBs to/from my it. My server has teamed GB NICs (802.3ad LACP Layer 2) connected to trunked (LACP) ports on my HP switch.
I just managed to get my hands on a CISCO 871 router but when I turn it on I have some errors:
*** Data Access Exception ***
PC = 0xfff3026c, Vector = 0x300, SP = 0x8000498c
The first time I powered on the router it booted, then I turn it off and since then I have this errors every time it boots up. If someone can give some info about the errors so I can try to remediate.
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For the past few days I've been attempting to configure a data T1 on a Cisco 1760, but I'm stuck at:
Serial0/0 <our ip address> YES NVRAM up down
To provide a bit of background. This router used to be configured with a T1 via Frame-Relay; which worked fine. Now we recently change offices and providers, and the provider did not offer any information as to which encapsulation type to use, and if Frame-Relay which DLCI to use, etc.
Now I've been trying to setup the T1 connection and testing various settings such as encapsulation HDLC and PPP, but no luck. I also played around with the line codes and framing; which resulted in the following framing sf int down, line prot down, framing esf int up, line prot down. Regardless no luck.
Now I've been following several guides and examples mainly the following: [URL] In this guide they make mention of a WIC-1DSU-T1-V2, but as you can see in the show diag snippet at the bottom; we have a WIC-1DSU-T1 version 1.5. I dont' know if this poses a problem for us.
Throughout the entire process I've seen a few irregularities for example:
1. Router(config-if)#service-module t1 cablelength short 110ft
^
% Invalid input detected at '^' marker.
The IOS doesn't recognize any command with service module t1 ca , and the only recognized command with C is clock.
2. If I enter the following list of commands under the serial interface:
!
interface Serial0/0
ip address 10.0.0.51 255.0.0.0
service-module t1 framing esf
service-module t1 linecode b8zs
service-module t1 timeslots 1-12 speed 64
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And I do a sh run all I get is the following:
!
interface Serial0/0
ip address 10.0.0.51 255.0.0.0
load-interval 30
!
Although i can do a show service-module s0/0 I can see all of the configured parameters (see below)
Module type is T1/fractional
Hardware revision is 0.128, Software revision is 0.2,
Image checksum is 0x73D70058, Protocol revision is 0.1
Receiver has no alarms.
Framing is ESF, Line Code is B8ZS, Current clock source is line,
Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536 Kbits/sec.
Last module self-test (done at startup): Passed
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I am trying to connect a cisco catalyst 3750g-48ts with our exsiting 3com corebuilder 9000 using the SFP ports, I have established a link and the interface is up.
The issue is that no data is passing through between the two, everything looks like it's up and enabled, spanning tree has detected the uplink port and has automatically set it to forward, both devices suggest the link is in place and the lights are on .
I am really new to Cisco and having a hard time with my Cisco 2800 series.
I have two sites connected with each other Site A and Site B (Using the same Cisco 2800). Now site A can connect to site B on the Cisco and the internal network, but site B can only see the Cisco and not the internal network of site A. So all the traffic is coming in to site B but can't break out of site B. I have tried everything I can think of but again my knowledge of Cisco is not good at all.
We recently purchased two 3750-X 48-port switches. We are in the process of connecting the Data Stack and StackPower cables. The question we have is what is the recommended Data Stack and Power Stack cable configuration if you only have two switches? All of the documentation that we have seen is for three or more switches.
Data Stack: Our assumption is that we will go from Stack 1 on the top switch to Stack 2 on the bottom switch. Do we need to then connect another cable from Stack 2 on the top switch to Stack 1 on the bottom switch? We would think not, but figure we should check. We plan on adding another three in the next budget year, which starts in May.
StackPower: Our assumption is that we will go from S-PWR on the top switch to S-PWR XPS on the bottom switch. Do we need to then connect another cable from S-PWR XPS on the top switch to S-PWR on the bottom switch? We would think not, but figure we should check.
We are currently experiencing random multicast data dropouts on ports that are connected to a 3750X in VLAN ports. A test PC was connected to a routed port and we do not have any dropouts of the multicast data.We also took a 2960G and plugged it into VLAN ports on the 3750X. Any test PC that is on the 2960G does not lose traffic. The traffic only drops on PCs that are connected to a port on the 3750X that is in a VLAN. The data drops are random and last approximatly 55-59 seconds before we start receiving multicast traffic again.
I do not see any input/output errors on the interfacessh platform port-asic stat drop also show no drops
CPU runs at about 50% on the 3750X
Below is the configuration of the 3750X
Building configuration...
Current configuration : 8454!!version 12.2no service padservice timestamps debug datetime msecservice timestamps log datetime msecservice password-
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Cisco c4948e switch log is showing :
COMPACTFLASHNOTREADY: Compact flash is not ready
Feb 24 00:28:22.338 UTC: %C4K_FLASH-4-COMPACTFLASHNOTREADY: Compact flash is not ready
COMPACTFLASHNOTREADY: Compact flash is not readyFeb 24 00:28:22.338 UTC: %C4K_FLASH-4-COMPACTFLASHNOTREADY: Compact flash is not ready
Checked the data sheet and is not supported. Why we get this log from the switch? is it cosmetic?
AME: "Linecard(slot 1)", DESCR: "10/100/1000BaseT (RJ45), 10GE (SFP+) Supervisor with 48 10/100/1000BASET ports and 4 10GE SFP+ port"PID: WS-C4948E , VID: V01 , SN: CAT1425S0NZ
NAME: "TenGigabitEthernet1/49", DESCR: "SFP-10Gbase-SR"PID: SFP-10G-SR , VID: V02 , SN: AGD132134ER
NAME: "TenGigabitEthernet1/50", DESCR: "1000BaseLH"PID: Unspecified , VID: , SN: FNS141203YF
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