Questions tagged [load-balancing]

For questions about load balancing network devices. For instance, you are setting up a port-channel with load-balancing or you want to load balance between two firewalls.

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8
votes
2answers
1k views

OSPF increase bandwidth with load-balancing

This is my current setup where i have 40Gbps links between all 4 switches running OSPF using L3 links between them but now i want to double my bandwidth between switches so i am planning to add (...
8
votes
2answers
3k views

Single Public IP Address for multiple physical locations

Is it possible to get or set up a public IP address that is load-balanced between multiple physical locations or sites? It may be something like a virtual IP address (VIP), which points to multiple IP ...
8
votes
1answer
814 views

Junos VRF equal-cost, multi-next-hop static routes not balancing

I am load balancing traffic on dual, same size links aggregating to the same VRF on the PE router (Juniper MX5 JunOS 11.4). Traffic from the CE (Cisco) is balancing nicely but I need get the reverse ...
7
votes
2answers
3k views

Why is there no “round robin” option for lacp (at least on my switches)?

I am trying to increase bandwidth for particular hosts by using lacp on a Cisco Catalyst 4500 switch. However, it seems that I will always end up with the same flow (src/dst mac, ip, and port) being ...
5
votes
1answer
141 views

PP BGP Load Balancing with JUNOS

So we've got a couple of BGP upstream providers, whom both are providing us with their full internet routing tables. What we are now wanting to do, is utilize both providers, rather than just one ...
4
votes
3answers
172 views

Native IPv6 load balancing

We have two software gateways (on Linux) for IPv6 that take fullviews from ISPs and announce our AS. And several nodes connected to Internet via the gateways. Something like at picture: And we ...
4
votes
2answers
286 views

BGP loadbalancing: full bgp table vs default route only

I'm trying to achieve this: http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13762-40.html#conf3. The only difference here is that I am being sent the full BGP routing table. ...
4
votes
3answers
25k views

Load balancing with multiple ISP, two routers and firewall

I have two ISP connections on two Cisco 2901 routers, in front of Cisco ASA-5515 firewall. I need to configure failover load balancing network. Two Cisco 2901 router with dual (different ISP) ...
4
votes
2answers
240 views

How do you account for unreliable ISPs?

I maintain internet for a small business in a third-world country, and I am forever struggling with unreliable service from our ISPs. Our current setup uses a Peplink Balance 580 for load balancing, ...
3
votes
2answers
6k views

What's the difference between interdomain and intradomain load balancing?

So I read that when a router knows two paths with equal cost to a destination it can perform load balancing. This load balancing occurs interdomain or intradomain. I can't undestand that because I ...
3
votes
2answers
952 views

How to set a zero cost link in OSPF

Can one set a link's cost to zero in OSPF? This could be desirable to force load-balancing in certain cases. For example, suppose there are four routers A, B, C, and D, and two hosts X and Y, with ...
3
votes
2answers
777 views

load balancing with multiple ISP, one router and asa 5520

I connected different two ISPs to the RV340 with dual WAN support. I want to connect the ISP - Router - ASA in the normal way, and connect the L2 Switch after the ASA. I need to know how to do DHCP ...
3
votes
2answers
161 views

Creating bandwidth with multiple WAN and LAN ports

I have a network with roughly 50 machines all on one LAN, consisting of Linux, Windows, and server machines. I have an untangled u150 firewall/router. I have the ability to add an additional WAN &...
3
votes
1answer
2k views

Using ECMP for switching in Layer 2

Equal-cost multi-path (ECMP) is a routing strategy that gives several benefits such as load balancing (as far as I know it is mostly implemented in routers). Suppose there exists a set of switches, ...
3
votes
1answer
808 views

Juniper SRX BGP based ECMP not working as expected

Overview I am trying to setup BGP based ECMP to two end servers that sit on separate subnets/VLANs and advertise out the same IP address to a SRX firewall. The end nodes are linux boxes running BIRD ...
3
votes
1answer
1k views

eigrp load balacing - per packet or per destination

Assume i have no cef enabled and there are 2 paths with the same cost ( both traffic share count = 1) Router#show ip route 20.20.20.1 Routing entry for 20.20.20.0/24 Known via "eigrp 10", distance ...
2
votes
1answer
77 views

What is the preferred way to prevent a particular subnet from being sent to one ASN

I have the following network. I want to prevent Subnet 2, S2, from being routed outbound of ISPA (preferring ISPC is also acceptable). None of my ISPs use BGP communities. Given that this is a live ...
2
votes
1answer
79 views

Load balancing across 2 Multi-link frame relay links- Verizon being difficult

We are provisioning a 4xT1 and a separate 3xT1 links to the same 2901 router with 4x VWIC3 - 2MFT T1 cards. Verizon claims they cannot bond all 7 into a 7xT1 and have thus provisioned us these 2 ...
2
votes
1answer
1k views

Load balancing between multiple layer 3 switches

I have two trunked L3 switches forming a network backbone. One is an old HP2848 and the other is a new Juniper EX3300. Currently only the EX3300 connects to our WAN Router and is trunked via 4 LACP ...
2
votes
1answer
458 views

ipsec balancing with multihomed setup

I have a multihomed setup with two ISPs with similar bandwidth characteristics. I want to route my traffic to a remote site via ipsec, so that my local network traffic goes through the tunnel and ...
2
votes
1answer
1k views

Load balancing among multiple PPPoE servers

What are the possible and efficient ways to load-balance users among multiple PPPoE servers? I have tried with VRRP. Is there any other efficient way?
2
votes
1answer
77 views

What is a meaning of Load balancing Hash

What does Load balancing Hash mean in CEF? Which commands are use to configure? Is it support to other vendors except Cisco? If it is not support other vendors? do they have any similar concept? Which ...
2
votes
1answer
779 views

Load-balancing one VPN-connection over multiple WANs

My internet connection will be provided by 4 different WANs (each 250 Mbit down, 100 Mbit up), which should be load-balanced to one 1 Gbit connection (full duplex, most likely ethernet (should be ...
2
votes
2answers
604 views

How can a TCP Flow with smaller congestion window have higher throughput?

It might be a stupid question, but as far as I understood the CNWD dictates the rate of a TCP flow. I created a "load-balancer" that split single packets on two paths of 10Mb/s. This introduces some ...
2
votes
1answer
560 views

Unbalanced port-channel utilization

I have below setup: +------------------+ vPC +------------------+ | | | | | NX5K-SW01 +-----------------------+ ...
2
votes
2answers
1k views

vyos, wan load balancing with one static and one pppoe connection

I have two ISPs, one static and one PPPoE. I use VyOS. I did the configuration with two static IP providers but when it comes to PPPoE I don't know what to write as the next hop for the interface ...
2
votes
2answers
345 views

BGP loadsharing not working

I am trying to build resilient core networking by using BGP. I have two routers, R1 and R2, which are connected to the single ISP. ISP has two routers (let's call them R3 and R4). My have successfully ...
1
vote
3answers
470 views

Traceroute inside a per packet load balancing based infrastructure

Could you confirm that in an infrastructure configured with "per packet" load balancing on the Routers (same route same metric), the usage of traceroute become unusable ? In this case the ...
1
vote
2answers
66 views

Load balancer features - load compensation

I was researching network load balancer features recently and I couldn't find a certain feature. I believe I heard some years ago about a network load balancer feature (don't remember any feature ...
1
vote
1answer
287 views

VMware Ethernet connection to two different switches that are linked together - What can result? [closed]

I have a client that someone in the past setup two NICs on the server to be active on vSwitch0. vSwitch0 has load balancing set for Route based on originating virtual port. Switches are D-Link DGS-...
1
vote
1answer
118 views

Network routing/WAN failover

Hi any one recommend me WAN Fail-over in Cisco 2811 router in virtual interfaces I already try this configuration. but its not working ip route 0.0.0.0 0.0.0.0 192.168.86.1 ip route 0.0.0.0 0.0.0....
1
vote
1answer
85 views

How can use Load balancing?

if we do not configure HSRP or another protocol ,How data will flood if there is redundancy ? please help me I need some explain about load balancing
1
vote
1answer
127 views

Conflicting of MAC addresses in reply path of direct server response

Consider we are using 1.1.1.1 as our VIP which is the IP address of the load balancer. I'm aware that I should disable ARP replies on loop back interfaces of back end servers. However another issue ...
1
vote
1answer
448 views

NAT Load Balancing

Hi I´m having problems with telnet through NAT Load Balancing. Always return when i try to do telnet 192.168.192.100 80: Destination unreachable; gateway or host down ROUTER NAT config: Current ...
1
vote
1answer
453 views

Will Nexus load-balance method “src-dst-port” help balance link usage between two servers on same subnet?

I'm sending data on multiple ports evenly, but only receiving data on two ports at my receiver. Both servers (on the same tcp subnet) are connected to pair of Nexus 7K switches (I believe they are ...
1
vote
1answer
128 views

Multiple uplinks in multiple locations

Our school just received a bunch of hardware from a corporation leaving a location, so now we are upgrading our networking in four classrooms. The rooms have fiber connections to each other. The ...
1
vote
1answer
99 views

Etherchannel configuration!

I´m trying to test this etherchannel configuration but did´t work properly. The goal is: I want to entablish a L2 communication channel between A and B, but i neet to put on the middle 2 equipments ...
1
vote
1answer
252 views

Is dual WAN load balancing possible for traffic to/from a webserver

We are currently hosting our website onsite and are maxing out the up and down speeds of the 50/5 mbps bandwidth provided by our ISP. They can not offer us a higher bandwidth connection but they can ...
1
vote
1answer
270 views

Apparently variance is not working for EIGRP ..what am I missing?

Here is what my router is reporting. I set the variance to 100 just to see what is going on. This is using classic configuration and the RD for the two alternate links is 537600. If I multiply the FS (...
1
vote
2answers
635 views

Why does object tracking with GLBP need a weight range?

So when enabling object tracking on an AVF for an ISP uplink (for example), while running GLBP on another interface of the router, we specify a weight range and tell the AVF that if object loses its ...
1
vote
0answers
48 views

Load Balancing without connecting to a server

I am having trouble verifying load balancing on fortigate 501e v6.0. I do not have a server to connect to but I tried creating a Virtual Server via the GUI and ping the external port. But when I enter ...
1
vote
0answers
567 views

pfsense Server Load-balancing on LAN Interface [closed]

I am trying to load balance a couple of web servers from the LAN side as I don't need access from the WAN so that clients on the LAN can access these web servers: LAN IP is 192.168.10.1 I created a ...
1
vote
1answer
62 views

Can I tie together two cellular connections for more reliable upload speeds?

I don't know that much about network engineering (hence why I'm here) so please bear with me, or point me to somewhere else where I can get help. I want to be able to broadcast a high quality video ...
1
vote
1answer
76 views

Access load-balanced website when DNS lookup is restricted on server [closed]

The scenario is - I need to send push notification to Apple push server hosted at gateway.sandbox.push.apple.com. This Apple server is load balanced and the destination IP address can be anything in ...
1
vote
1answer
1k views

SonicWALL Load Balance Term

Currently I am learning about load balance method available on SonicWALL. I have some question regarding the load balance methods for 1) round robin 2) spill over 3) percentage. Assuming there are two ...
1
vote
1answer
337 views

Load Balance with TL-R470T+

I have the TL-R470T+ and i have two different internet connections from two different ISPs. One 39 Mbps and the other 5 mbps and i want to get 44 mbps. When i installed the router on the speedtest ...
0
votes
1answer
36 views

Reccomended set up for wifi in dense apartment block?

I live in an apartment block of 87 units & one thing most people in it complain about is the poor cellular data reception. I have an idea of installing a fast wifi internet connection ...
0
votes
2answers
783 views

F5 backup whole bigIP configuration and save UCS

I'm trying to export my current F5 bigIP configuration into a file and later create a replica of the same bigIP with that configuration. This reference mentioned following this: Create the UCS ...
0
votes
1answer
49 views

Route protocol based on network load

I am in search of a network protocol recommendation for the following scenario: I would like to have a load balance routing protocol that can alter the cost of a router based on its current load. eg:...
0
votes
1answer
354 views

MikroTik: bisschoff load balancing problem? [closed]

I'm using bisschoff load-balancing .its really good and works fine.but it has a problem. The problem is when a adsl line don't have access to internet , it don't disable automatically and vice versa. ...