we have 6500 series switches by default all port channel loadbalancing is src-dst-ip.Now we have a requirement to change LACP load balance method to src-dst-port.
1) If we change LACP loadbalance method whar are the effects we are going have on our core network and all the existing servers
We have two 6500s. One is running in power redundant mode and the other is running in combined mode.We need to change the one running in combined mode to redundant mode to ensure it can run ok on one supply if needed but I have a couple of questions.
1. Assuming that we are not oversubscribed on the power allocated, does changing the mode cause any disruption?
2. The switch running in combined mode seems to have allocated some power for an "Inline Local-Pwr-Pool" which is not allocated on the switch running in redundant mode (see attached). Does this allocation will be needed if we change the power mode?
I am going to change a running 6500 switch. I am missing a best pratice doc for changing a cisco switch configuration. My question is if a startup-config has an error (due to typo mistake, or due to comands not supported on latest IOS) and I do copy tftp startup-config then what will happen ? I want to make sure when I do "reload" the switch then it should boot normally with the latest startup config !
View 3 Replies View RelatedWe have two 6500 core switches and one(primary) of them is running in VTP transparesnt mode and the other (secondary) one is running in VTP client mode. I would like to change the VTP mode of the second switch to transparent mode. Would it cause any issue. I guess i have to create VLANs onto the switch.
View 7 Replies View RelatedI have a pair of data center core 6500 is running a single EIGRP AS with the standard core redundant cross connects. Recently an SVI sub net was expanded from a /24 to a /23 and dropped out of the EIGRP routing table. Subsequent trouble shooting lead to the router id being one using an IP address that is no longer active IP address.
Reviewing old configurations I found, that year ago, the ip address used for the EIGRP router-id (10.100.106.3) was removed from the active interface and changed but the EIGRP router-id was not updated. The switch has not been rebooted since, no loop back is configured and there is not a higher IP configured on an active interface. Reviewing documented material on it, I cannot find anything specific on this condition but do see in the discussions on duplicate IDs, that new route updates can be a problem. I know how to update the router id but I am looking for confirmation on what would be the impact when I add a new loop back and manually configure the router-id under the EIGRP process with the new loop back IP.
My assumption is an EIGRP update and route re convergence with the standard 90 seconds of outage. How to confirm this is assumption is correct? I have no test bed to find out myself without doing this on the active cores.
show version Cisco IOS Software, s72033_rp Software (s72033_rp-IPSERVICESK9_WAN-M), Version 12.2(33)SXI5, RELEASE SOFTWARE (fc2) show inventory NAME: "WS-C6504-E", DESCR: "Cisco Systems Cisco 6500 4-slot Chassis System"PID: WS-C6504-E VID: V01, SN: <deleted> NAME: "1", DESCR: "WS-SUP720-3B 2 ports Supervisor Engine 720 Rev. 5.3"
PID: WS-SUP720-3B
EIGRP configuration is pretty basic:
router eigrp 10
network 10.0.0.0
redistribute static
passive-interface Vlan110
passive-interface Vlan80
[code]...
I've got LACP-enabled port-channels between a Cisco 3750 stack and a few different switches (some Cisco 3750s and some Juniper EX2200s). The Ciscos are all sending slow LACP updates, the Junipers are sending fast LACP updates (but the Cisco they connect with is responding with slow LACP updates).
I have a couple of questions:
1) what are the pros and cons of slow vs fast updates? my research has led me to the conclusion that fast updates are better for network resiliency as long as you have plenty of bandwidth overhead (which I do at the moment). is there anything to add to this conclusion?
2) is there any way to configure the Cisco 3750s for fast updates?
We're trying to configure our Cisco 4507 (Supervisor Engine IV) to allow a new Dell server with a pair of Broadcom 5708 GigE NIC's to aggregate its NIC's to give us a 2gbps link to the switch.
So far we seem to have got the team and LACP up and enabled, but the adaptor that the Broadcom Admin Util creates for the team is only showing a 1gbps connection where I would have expected it to show as 2gbps.
The individual NICs show as connected at 1gbps. We're not Cisco experts so are struggling on how to get the 2 NICs to aggregate.
On the server side we've done nothing other than create a team using 802.3ad LINk Aggregation using LACP.
This is what I think the relevent output from "sho conf" is, more available if needed.
version 12.2
boot system flash bootflash:cat4000-i9s-mz.122-18.EW1.bin
!
interface Port-channel2
[Code].....
i'm desperately trying to get LACP working over a dot1q Tunnel. The "Service Provider" Switches are two 4506-E Switches with SUP7-E connected via a 10G Link, running on cat4500e-universalk9.SPA.03.03.00.SG.151-1.SG
sample config:
dot1q tag vlan native
interface GigabitEthernet3/1
switchport access vlan 2001
[Code].....
I am trying to configure a 6509 as the passive receiver from a Dell Force10 10Ge switch with 2 sfp to 2 gig ports on our 6509 switch, I see LACP is up on both sides but cannot pass traffic, I have only 2 vlans that will carry across the aggregate link from our vmware boxes, this is just a temp until I get a 10ge in our 6509 chassis.
View 2 Replies View RelatedI have conneccted a server with LACP on Nexus extender. I am starting different file copy from diffferent sources to this server, it does not load balance.
source addresse: 192.168.30.3 / 192.168.30.1
destination: 192.168.30.2
I have two N5K (5020) switches with NX-OS - 5.0(3)N2(1). These two switches form VPC domain: peer-link = 2*10Gb ports (1/17-18) and peer-keepalive link over managements ports.Also I have two HP servers with two 10 Gb ports on each server.Each server conected by one link to each N5K switch (1/9-10). N5K downlinks configured as access ports with LACP Active mode.There is only one VLAN (1).When "no shut" command entered on N5K access ports - ports going in "not connected" status, begin flap and then going in "linkFlapErrDisabled" state.In attach - "sh run" from N5K.
View 1 Replies View RelatedWe have 2x WS-C3560X-48 with the 10Gb SFP C3KX-NM-10G module.I want to use the 10Gb SFP (with a redundant 1Gb link) between each of the switches.Below is the configuration what I think I should use. Is this correct?
SWITCH1
int TE1/1
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode active
[code]....
We also want to utilise Link Agrrigation for the servers that attach to the switch. Would this config be correct?
port-channel load-balance src-ip
int range x
switchport mode access
switchport access vlan 1 (They are all on the default vlan)
spanning-tree portfast
channel-group x mode active
(Then I would configure the LACP config on the server) Is there anything I am missing?
I need to implement LACP HP servers mostly DL 380 g7 with Intel based dual port with two types of Cisco equipment first scenario server connected to 3750x stack of 4 switch's .second scenario same server type connected to two Cisco Nexsus 5596 . My question regarding two type of connection.Is it possible to do active active ?Would it give fault tolerance ?With HP LACP implementation is there known issue or should i expect latency with such configuration?What is the maximal lag- channel group that is possible per type?
View 1 Replies View RelatedIs it possible to configure LACP etherchannel to a Catalyst 3750? Playing around with the SMB switches for the first time.
I know how to do it on the 3750 but am having trouble figuring out the sge2000p.
I have a cisco 3560E switch setup with LACP, when using LACP i receive alot of packet loss / output drops
When a ping from the server behind LACP:
--- google.com ping statistics ---
44 packets transmitted, 39 received, 11% packet loss, time 42990ms
what would cause this packet loss with lacp?
some output from the switch:
Port-channel12 is up, line protocol is up (connected)
Hardware is EtherChannel, address is d0d0.fd58.7390 (bia d0d0.fd58.7390)
Description: LACP-PORT
[Code]....
I need to know if is possible to do a LACP using 2 x 10GB between 3750X and 2960S (WS-C2960S-48LPD-L) switches.
View 1 Replies View RelatedI am running the latest version of 12.2(55)SE6 on the catalyst and I am looking for this command "lacp rate fast" but it is not there:
lab-c3750#conf t
Enter configuration commands, one per line. End with CNTL/Z.
lab-c3750(config)#interface g1/0/5
lab-c3750(config-if)#lacp ?
port-priority LACP priority on this interface
lab-c3750(config-if)#lacp
According to this link, it is supposed to work: [URL]Am I missing something?
If after having an active peer-link port-channel between a couple of nexus 7010 I change lacp system-priority on both boxes and then I add a new member interface on that port-channel , that interface will be aligned with new lacp system-priority value but the old member do not and so I have to reload those modules which include old member interface.
View 1 Replies View RelatedWe are planning to have attach topology with nexus 5548 using vpc. Let me know if this i possible. I want to configure dual NIC linux server using LACP active mode to connect to two 5548 in VPC for redudancy as well as use of full access layer bandwidth. On nexus this will be access port in single port channel in single VPC link.
View 1 Replies View RelatedI have a Cisco 3750G-48PS Running IOS 12.2(40) and was wondering how many physical ports are supported in an LACP Configuration. Is it 4 or 8 ports in a single switch.
If I have a dual 3750 stacked together, and I want to configure (8) port LACP, Can I take (4) ports from each switch in the stack and LACP together.
I have a Cisco 6513 switches connected to HP VC Flex 10 Module. The (2) 10Gb ports on a Cisco Switch connected to VC Flex-10 in LACP mode.
I need to move those (2) 10Gb ports on Cisco Switch 10Gb Module to a different 10Gb module on a same Switch without bringing the ports down since it is a live environment.
What I would do is to configure a same port channel ID on a new 10Gb module and then move port one by one. unplug one port and connect to the new port on a module. While I will be unplugging the first port the other active port will keep sending traffic and as soon as I plug in on another port, both ports will be active.
I have configured a portchannel with 3 ports - lacp active mode I want to pxe boot esx server with Hp Proliant DL 360 G7.
During Pxe Boot the physical Interfaces must be in (I) state - standalone.
The server receives via dhcp the ip but after getting the ip the link goes down for a short time and the switchport goes down and then in (w) state - waiting to be aggregated. Now the server tries to load via tftp the image but the server gets a timeout because the switchport is in state (w). It takes a long time til the switchport comes back in standalone mode (I).
Is it possible to modify the time how long the switchport is in the waiting to be aggregated state on 3750x ?
Would the right command be lacp rate-fast? But this command is not available on 3750x, only 6000 series.
I am having an issue on a Cisco 3750 stack where when the stack master is rebooted, all my lacp port-channels drop and then come back up again. After doing some investigation It seems that it is happening because of lacp using the stack master mac-address as part of the system-id, so when the stack master reboots, the stack mac changes. I see that there is the command: stack-mac persistent timer 0
There is this warning about using this command:
When you configure this feature, a warning message displays the consequences of your configuration. You should use this feature cautiously. Using the old master MAC address elsewhere in the domain could result in lost traffic.
My question are:
Are there any other consequences to using this command (apart from moving the switch/mac to another location in the network)It mentions 'If the entire switch stack reloads, it acquires the MAC address of the master as the stack MAC address' Is this still the case if you have the stack-mac persistent timer to 0? Does using channel-group mode on for the port-channels still use the same mechanism of having a system-id? (Will the channels flap using 'mode on' when rebooting the stack master.
Does the LACP will be supported on Nexus 2000 host interfaces when parent switch is Nexus 7000?
View 5 Replies View Relatedhow can we upgrade 6500 non modular ios to normal 6500 ios?
View 5 Replies View RelatedWe have Dell M6220 blade server that server is connected to cisco 3750 switch. I am trying to configure LACP in 3750 for two port which are connected to Dell M6220 server switch. The channel-group 2 mode active commande is not taking then its showing the error protocol mismatch and if i run show int port-channel 2 command the port channel status is showing down. The Dell server switch is on simple mode. below i have attached the required details.
Switch#show int port-channel 2
Port-channel2 is down, line protocol is down (notconnect)
Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
[code]...
Im trying to find an affordable Cisco switch with similar capabilities and features as the WS-C3560X-48T-S (L2/L3 routing as in IP Base, dual power supply, etc.).
View 2 Replies View Relatedjust got new hardware and decided to try the newer USB port for IOS upgrades. I could not get the switch to recognize my 2gig flash drive. Do I need a proprietary stick or special format?
I also noticed when I removed it the switches crash dump and rebooted?
I am trying to configure Cisco SG300-52 switch for the first time and stuck without CLI configuration option. The configuration can be done using GUI, however, configuring using CLI would be more comfortable (as I am used to work with CLI of other Cisco switches)..
I was able to lo gin to switch using SSH, but the CLI appears in MENU format and was not able to find any way to go to CLI mode.
As per some blogs, in SG300 switches CLI mode can be accessed using Ctrl + Z in Menu, which did not work either in my case.
Switch is running with latest firmware version Sx300 Firmware Version 1.2.7.76.
I am updating the iOS for a 4948 the bootflash is empty so all i can get into is the rommon. There is no option for x-modem. How can I put the iOS onto this device? [code]
View 2 Replies View Related we recently aquired a managed services job and have to do a overhaul of the vlan configs and have a whole dozen WC2948G's trunk between a set of ports as well as trunk out a LAG channel setup to non cisco equipment. the deal is the lacp-channel works properly on both ends but no routing of vlans between ports and between the lag trunk are working.
theres alot of settings in the config and im planning on clearing it and starting from scratch but before i do i want to know where my problem lies.
[code]...
We have a Cat2960-S Series PoE+ currently running 12.2(55) SE5 ios with SW image C2960S-UNIVERSALK9-M.We want to upgrade the ios to the lastest version but found there are 2 version: 12.2(53) SE2 and 15.0(1) SE.Which is the best & suitable for upgrade?
View 3 Replies View RelatedI have a very simple setup containing 3 C2960S switches:switch 1: central switch, acting as router between VLAN 1 en VLAN 2switch 2+3: edge switches, connected via 1 link to central switch, both on VLAN 2,Clients connect to switch 2 and 3 using dhcp, switch 1 uses dhcp relay to forward requests from VLAN 2 to the dhcp server on VLAN 1. So far so good.Now I want switch 1 to add option 82 to the dhcp requests so the dhcp server can see whether the request came through switch 2 or switch 3. I tried turning on dhcp option 82 support on switch 1 by doing.
View 2 Replies View Related