I have two 2960 switches connected with two links. One of them is transparent modem connection with 2Mbps limit, and the other is optical link with media convertos on both sides. Is there a way to set up etherchannel, LACP or any other kind of link transparent to switches or I have to use some sort of STP?
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if my SA520w will support link aggregation for network devices within my LAN. If so, is there a Cisco wiki or how-to on how to setup this up in the SA520w? I only find a brief mention of this in Section D of the manaul.
View 1 Replies View RelatedI have two workstations running 7 Pro, each has a quad port intel card (PCIe) which I have created teams for on both sides using link aggregation. On my switch, a Cisco SG500X-24, I set up two LAG's with 4-ports each and have both servers connected as necessary. I turned on Jumbo frames and disabled energy saving. The teams were set up without LACP turned on, however I tried it with LACP and I also ran into the same problem. Both workstations have a 26TB arrays running in RAID 6 (so plenty of read/write speed), however, with this setup, I can only get about 100MB/s (single port speed) and multiple data streams cause the speed to divide. Only single ports blink on the cards as well.
Questions 1 is probably a no-brainer, but it's my first time setting this up, but once this is working properly, would it allow a single file to transfer at ~400MB/s or would I need to start multiple datastreams to take advantage of link aggregation.
Question 2 is what do I need to change to make the link aggregation work?
I do have a little linksys router plugged into a non aggregated port to do DHCP but that wouldn't mess anything up, would it? Considering I can unplug it once everything is talking, all the transfer should take place at the switch level, correct?
We want a solution for routing between N5K and VSS with aggregated WAN links.
DC1: It has 2 cisco 6509 with VSS. There are 4 server farm cisco4948 switches connected with VSS with redundant uplink via MEC. Server gateway is the VSS. VSS is running Eigrp routing.
DC2: This is a new datacenter we are going to establish soon. We are planning 2 N5K at core layer with L3 daughter card and 4 N2K as server farm switch. 2 N5K will have vPC peer between them. Each 4 N2K will connect with redundant uplink via vPC with this N5K. N5K will run Eigrp routing and will be the gateway of this new DC server.
WAN between DC1 & DC2: DC1 VSS will connect with DC 2XN5K with 2X10G links. we want to do MEC at VSS side and L3 vPC at DC2 side. If we have VSS at both end it might not be a problem. Both the link will work together as 20G aggregated link. But as we are using N5K at one end, so it creates a confusion whether it will work properly is this scenerio or not.Also I would like to know,
1) In VSS I have configured 1 VLAN interface for server gateway. But in N5K do I have to configure at 2 switch seperately?
2) In WAN routing VSS shows as 1 device. Does this 2 N5K will show as 2 seperate hops or L3 vPC will allow them to act as a single device while traceroute from one end to another end.
whether VSS technology support on 3560 switches.I'm planning to intergrate new Cisco 2x6509 with VSS and all the access swtiches 3560's uplink to core 6509..if not support, what will be the solution or any bug fixing or new IOS releasing
View 1 Replies View RelatedWe are running a Cisco 887VA router for our internet access but of course the port connected to the internal network only supports 100Mbit/s. There are a few 100Mbit/s ports on the router; I was wondering whether it was possible to use more than one port to provide aggregation to get higher speed such as two ports providing 200Mbit/s? We are running Gigabit internal.
View 4 Replies View RelatedI have 2 devices which need to communicate through Logical Link Control. Each device functions like this: they have a built in network switch that allows their internal components to communicate with TCP/IP which is then encapsulated inside LLC frames and sent out a special port. The LLC frames from each device all come from a single source MAC address and are broadcast out the network. The receiving deivce receives the LLC frames, unencapsulates the data and uses it directly.
Using it this way through a single 2960 (such that device 1 is connected to fa0/2 and device 2 is connected to fa0/23) with its own dedicated VLAN and no other traffic on the switch (all other ports shutdown), the two devices are unable to "connect". Using a SPAN session, I can clearly see them exchanging LLC frames, but if I connect my computer to the internal device switch and try to ping the other device through the LLC encapsulated link, I get anywhere from a 25% to 100% loss with response times between 2ms and 15ms.
When I connect the special ports of each device together directly with a straight through cat-5e cable, they can connect and I can successfully ping through the link with sub-millisecond response times. The same goes if I connect them through an old unmanaged Linksys switch. I have toggled everything on the 2960 I can think of, including STP, CDP, LLDP, storm control, keepalives, IGMP snooping, management interface VLAN1, and QoS. In general, the more of those that I turned off, the faster the ping responses became, but nothing seems to stop the data loss.
use PAGP as backup for wireless link with another wireless link.
__WiFi________
PC-------Switch 1 Switch2---------- PC
__WiFi________
We are using 2960 series and from this reason we cant use L3 PAGP I dont know how is PAGP working. If it is checkung port status (UP/Down) or there are some specific L2 packet between etherchannel ports in group?
below is the current config of link that is already up. I need to add another fiber redundant link between 6509 and 2960 stack. How to work on config Spanning side by not taking 6509 down after the change. 6509 is in distribution.
---------------X-ALPHA-IDF-1FORMS-2960S-0# (SIDE)
!interface GigabitEthernet1/0/52description X-ALPHA-F-6509-0 uplinkswitchport trunk native vlan 18switchport mode trunksrr-queue bandwidth share 1 50 30 19priority-queue out mls qos trust dscpmacro description cisco-routerauto qos trust spanning-tree portfast disablespanning-tree guard loopip dhcp snooping trust!
-----------------X-ALPHA-F-6509-0# (SIDE)
!interface GigabitEthernet3/10description 1st floor POC2 Forms IDFswitchportswitchport trunk encapsulation dot1qswitchport trunk native vlan 18switchport mode trunkno ip addressmls qos trust dscpspanning-tree guard loop!
what is the difference between "link aggregation" and "STP"?
For example:
I have two switches connected with two ethernet cables together. Why I will use link aggregation on trunk ports (without load balancing) when STP will do same service?
I have an existing stack of 4 x 2960-S switches connected by stack cables.I would like to add another 2960-S switch to the stack but am unable to as the 2960-S will only allow 4 x 2960-S switches per stack.how I would add the 5th 2960-S switch to the existing stack of 4 x 2960-S switches.
View 12 Replies View RelatedI have a 24 port 2960-S that is not communicating with a 2960-LST that it is directly connected to over fiber. The link is up on the LST but will not come up on the -S. What command should I use to bring up this link? I have tried no shut from the (Config-if)# prompt.
View 3 Replies View RelatedI'm trying to setup Link Aggregation on this switch for an HP server with a 4-port NIC which is teamed. I create the LAG and see in the HP Network Utility where each port in the team disconnects then reconnects and the server has internet access, but workstations cannot access the server (can't browse UNC, RDP, ping, etc.) and vice versa. This is the only switch at the site, all the workstations are plugged into it. Rebooting the switch after creating the group didn't have any effect.
View 1 Replies View RelatedI am trying to setup a home network where I have multiple low bandwidth or rather lower bandwidth links coming in. They are suppose to be broadband but I do feel the need for a fatter pipe. Since this is in India and we have limited availability of bandwidth options like here in the US I thought if I could double or even get close to doubling my bandwidth using some sort of device for link aggregation or a network / pc setup which can achieve thisThe links I am getting are above 1mbps, possibly even 2mpbs and its relatively cheap, 100$/yr so I can add 3-4 to get desired results. A dedicated 10mbps connection costs nearly 12000$/yr so I have a lot of margin to create a substantial pipe without the cost if what I am thinking is possible.
View 4 Replies View Relatedi'm installing a Firewall Cisco ASA 5550 with 8 Gigabit interfaces.
I have installed firmware 8.2.3.
Is it possible to make link aggregation on ASA to have more bandwith?
I've been having some issues lately where if I am copying large amounts of files two and from my NAS and thus saturating my gigabit ethernet, web browsing and internet streaming slows down which is a bit of a bummer. I figured I might fix this with link aggregation.
My switches (Procurve 1810G-24 in basement and 1810G-8 in office) both support 802.3ad Link Aggregation. It works beautifully to connect them together, as well as to connect my FreeNAS box to the switch as well.
how do I set it up to work with my Windows 7 box?
I can't find the options for 802.3ad in the windows menus anywhere, and googling has not led me to the answer yet...
My motherboard has two on board Intel gigabit ports (Intel 82574L and Intel 82579V). Is it possible to link these two, or do I need to pick up another Intel PRO PT dual port copper gigabit NIC like I have two of in my server?
Having issues waking NAS devices using a magic packet when using link aggregation on an SG300-28 switch.
Without link aggregation everything works fine so I know the magic packet is being generated correctly and the NAS device is correctly configured to wake. After configuring link aggregation the device does not wake. Have tried dynamic (LACP) and static link aggregation but neither allowed the device to wake? When the NAS is powered off, the ports in the LAG still show as being connected at 100M but it appears the magic packet is not being transmitted.
I have a Synology 1512+ and trying to setup Link Aggregation but no success. I have configured LAG Management with LACP enable or disable but still failed.
At the Synology 1512+ setting page, there are 2 options: IEEE 802.3ad Dynamic Link Aggregation and Network Fault Tolerance (Non-802.3ad network enirovement), I selected IEEE802.3ad, which i think S200-18 should be able to support. right?
I am looking after a mixed collection of Cisco and HP switches and use a Perl script to extract configuration data.I use the ifStackStatus table (OID: 1.3.6.1.2.1.31.1.2.1.3) from RFC1573 to sucesfully obtain the EtherChannel data from the Cisco switches but, though I do obtain data from the same table from the Procurve switches it seems to bear no resemblance to Link Agregation. I could look at other tables and may have to - but would like to use this one in order to simplify the code.
View 2 Replies View Relatedanswer regarding stacking the SGE2010 switches versus link aggregation if greater than 1 Gb connectivity is required between individual switches? Currently have several switches in a stack configuration but would like to increase the bandwidth between some or all of the switches. Does stacking support a link aggregation configuration? If so what ports can be used and how should the link aggregation be configured in conjunction with the stacking?
View 2 Replies View RelatedWe have a pair of N7K distribution switches connected to a pair of N7K Aggregation switches.We run vPC on both pairs of n7k's.
-n7k-d1 has two interfaces in a Port-Channel connecting to n7k-a1 & n7k-a2. (PC1)
-n7k-d2 also has two interfaces in a Port-Channel connecting to n7k-a1 & n7k-a2. (PC2)
My problem is that Spanning-Tree is blocking PC2 and all traffic from n7k-d2 is traversing the Peer-Link before reaching the Aggregation layer. Is this the best design for connecting two pairs of n7k's with vPC or if a better design would be to connect all 4 links into the same Port-Channel and vPC?
My management has tasked me to give them a high level overview of the different switching we can choose for our new building.
This is what I know so far.4 Closets, each closet has 450 ports,One MDF room that is will contain one UCS Chassis and a Nimble iSCSI SAN.
I am working on the spreadsheet and it looks like this (Not totally filled):
2960s3560x3750x45064510Approx cost (Each, 48PORT, POE+, 10G uplink, Dual PS, IP BASE)
6K7K8K45K75KMax Capacity192432432192384Backplane speed206464520520ProLeast ExpensiveStackable to 9Stackable to 9ProDual PSDual PSDual PSDual PSDual PSProLayer 3 opt
Layer 3 optDual SupsDual SupsConExpensiveExpensiveConNo Dual PSConLayer 2 OnlyCannot stack more than 4
For the MDF I would like to use 2 Nexus 5548's with FEX's, and the layer 3 daughter board. For the IDF's I was thinking of two 4010's.
I am using a 3750 as a default gateway for multiple Vlans on a few 2960 switches. The trunk lines are configured and working and I have assigned ip addresses to each of the Vlan interfaces on the 3750. My issue is that I can only ping the ip address on the Vlan interface of the 3750 if I have a working computer plugged directly into the Vlan on the 3750. I only have 3 vlans on the 3750 that have hosts directly connected (vlans 2, 10 and 40) the other vlans ( 20 and 70) don't have any clients plugged into them on the 3750 but the hosts reside on 2 different 2960s that connect via trunk ports. How do I keep the vlan interface on the 3750 switch pingable when I don't have hosts directly connected in that vlan on the 3750? (yes, I have enabled ip routing on the 3750)
View 5 Replies View RelatedI have a Cisco SG 300-20 as the core switch, layer 3. It is 192.168.4.6 on VLAN1 and 192.168.5.1 for VLAN2 (VOIP). All the ports are set in trunk mode. DHCP relay is setup on this switch.
The phones connected into a layer 2, Catalyst 2960-S switch. All ports are set in trunk mode. Default gateway on it is set to 192.168.5.1.
DHCP for both VLANs is provided by a Windows Server 2008 R2 server (the relay IP 192.168.4.15).
There is also an ASA 5510 in the mix which is 192.168.4.1. It has a route added to it for the 192.168.5.0 network to go to the SG 300 (192.168.5.1).
Just the two switches can ping each other on the 192.168.5.x network when I "add vlan 2" to the trunk port that is connected between the SG 300 and the 2960. The phones don't get DHCP on the 2960 switch. And I cannot ping 192.168.5.x from the ASA or anything else on the 192.168.4.x network.
After a bit of reading on intra-vlan routing for the SG 300 switch, I am thinking the SG 300 has to be the "center" of things so I need to make it 192.168.4.1 to be the gateway for both VLANs and change the ASA to 192.168.4.2 for VLAN1, etc. And I really can't do asymmetric routing with this switch.
Does the Model "WS-C2960-24PC-L" Supports IP Routing or not?
View 9 Replies View RelatedI'm having a strange problem where I'm not able to get through a Cisco 2960-S L2 switch when connected through vpn, while LAN-WAN traffic is working fine.The situation on site is the following:When inside the network I'm able to get to the internet without a problem. The problem is within a vpn-session. When this session is succesfully started I can ping and manage the Cisco 2960-S switch, but I can't ping or manage the Dell switch from my laptop. I can however ping the Dell from the Cisco-switch. [code]
View 7 Replies View Relatedset up my QoS on two 2960
-------------------- ------- ------- ------------
PBX Asterisk |----|2960-1 |------|2960-2 |-----|Voip client2|
-------------------- ------- ------- ------------
-------------- |
[Code].....
This will be this configuration for all input interface right ? For the Output part I'm lost, what do I have to do ? And for the 2960-2 do I have to put the same configuration ?
we hava a couple of 2960 switches and we are logging to a syslog server. Ports keep going up and down is it normal severity (error) ?
View 2 Replies View RelatedWe recently updated a site2site link to metro ethernet, ISP call it 100mbps LAN Extension, but to me it is just QinQ over fibre connection. Most went well, one thing (annoying to me) is we can not ping our switches on both ends anymore.
We have a 3750 in headend and another 2960 on the other end. I used to be able to ping/telnet to the management IP from one to the other. Now we can not. I think the ISP is applying some configuration on ports of their customer-premises equipments (both are Cisco switches) but agent in ISP told me no. I thought there is some configuration on Cisco switch to block "MAC discovery" but i just can not remmenber what was that and google also failed me this time.
I have got two links from the same ISP, primary and secondary and connected to two different switch. The ISP have passed the trunk vlan of 30, 31 and 32 on both of the links. The ISP can't provide stp. I have got another managed 2960 series switch. How can I obtain failover on switch level.
View 2 Replies View RelatedI have IP phones connected to 2960 i want to segregate traffic traffic comming from IP phones which has a COS value of 5 and want to allocate a band width of 200 MBPS for those traffic .
Can any one share sample QOS configuration for achiving this in 2960 ?
My cisco ios 2960S is crashed and the ios is gone The issue is i am connecting my pc to management port and i give switch:
IP_ADDR x.x.x.x/255.255.255.0 and also switch: DEFAULT-ROUTER
But i can not copy tftp to flash,according that i have L3 port (management) why should i use xmodem?
I have 2 switches connected Via MM fiber cable one of them SRW2024-K9-NA with MGBSX1 Transceiver and the Secand One 2960 with GLC-SX-MM
are there is any configration must be done or not ?
