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- HSRP configuration for vlans
- Hi,I have cisco 4507 L3 switch configured with vlans(Layer-3). I want to configure HSRP vlan based with another 3500 L3 switch using HSRP groups as there are 68 vlans. Kindly help on this.Regards,Santosh
- Tags: LANs, santo_1232000@..., VLAN, HSRP
- Discussion threads 2007-05-15
- Ensure Cisco router redundancy with HSRP
- great info...Thanks for the great info. I always learn something new.Nice work....Thats going to come in handy. The network that I administor uses HSRP, and I always have a hard time explaining the concept to clients when they are trying to understand our topoloy. Think I'll keep this someway safe...
- Tags: HSRP, great, Cisco Systems Inc., EEnglish34@..., HSRP Group, networking, Cisco Router, router
- Discussion threads 2006-04-21
Additional Resources
- Provide redundancy on your Cisco routers with GLBP
- Cisco RouterDatail of it impotance in NetworkingimportanceThanks for your post.This is important so that if one router goes down, the other router takes over for it.Put it in the category of "high availability" or "redundancy"Thanks,DavidQuestionCouple of Questions:--------------------1. Can I configure both HSRP and GLBP on the same Cisco router ?...
- Tags: Cisco Router, Cisco Systems Inc., GLBP, networking, router, sam4lad@..., security, uses
- Discussion threads 2005-10-11
- Why Doesn't PIM Sparse Mode Work With a Static Route to an HSRP Address?
- Protocol-Independent Multicast PIM is a family of multicast routing protocols that can provide one-to-many and many-to-many distribution of data over the Internet. The "Protocol-independent" part refers to the fact that PIM does not include its own topology discovery mechanism, but instead uses routing information supplied by other traditional routing protocols...
- Tags: Routing Protocol, Cisco Systems Inc., BGP, Networking
- White papers 2007-02-20
- CISCO GLBP PROTOCOL
- I have implemented Cisco Glbp protocol in a lan where there was HSRP.Now the situation is that the balancing is only on the LAN side (60%-40%)but the imput side ( WAN- Serial Interface)is still unbalanced.This is normal or can I have a balancing also in the input zone?ThanksAlbertoGLBP protocol will...
- Tags: CISCO GLBP, CISCO GLBP PROTOCOL, Cisco Systems Inc., graphco@..., MAC, MAC address, networking, WAN
- Q&A 2006-01-08
- Ensure Cisco router redundancy with HSRP
- What happens if your Internet router goes down and you lose all Internet access? That's why it's important to include redundancy in your network. In this edition of Cisco Routers and Switches, David Davis explains how you can use the Hot Standby Router Protocol HSRP to ensure redundancy. What...
- Tags: Cisco Router, Cisco Systems Inc., Hot Standby Router Protocol, Routers & switches, Network technology, NETWORKING, David Davis CCIE, MCSE+I, SCSA, router, redundancy, network, Cisco Routers and Management Newsletter, IP, IP Address, Standby, David Davis, Default Priority Number
- Technical articles 2006-04-20
- Provide redundancy on your Cisco routers with GLBP
- GLBP is a router redundancy protocol introduced in Cisco IOS version 12.2(14)S. Not familiar with GLBP? Let David Davis introduce you to this protocol and show you how to configure it. Are you familiar with GLBP? I'm willing to bet that a good number of you are not....
- Tags: Cisco Router, Cisco Systems Inc., GLBP, Routers & switches, Network technology, NETWORKING, David Davis CCIE, MCSE+I, SCSA, router, Hot Standby Router Protocol, Virtual Router Redundancy Protocol, Cisco Routers and Management Newsletter, David Davis, Active Virtual Gateway
- Technical articles 2005-10-06
- Preserve NAT translations when a Cisco router fails
- When you have two routers running HSRP, the standby router takes over if the active router goes down. But if this happens when you're using NAT, it severs all connections going through the active router. David Davis tells you how to use HSRP and SNAT to preserve these NAT translations....
- Tags: Cisco Router, IP, Network Address Translation, Cisco Systems Inc., SNAT, NETWORKING, Routers & switches, Network technology, David Davis CCIE, MCSE+I, SCSA, router, network, Cisco Routers and Management Newsletter, David Davis
- Technical articles 2006-04-27
- CISCO GLBP PROTOCOL
- I have implemented Cisco Glbp protocol in a lan where there was HSRP.Now the situation is that the balancing is only on the LAN side (60%-40%)but the imput side ( WAN- Serial Interface)is still unbalanced.This is normal or can I have a balancing also in the input zone?ThanksAlberto
- Tags: CISCO GLBP, CISCO GLBP PROTOCOL, Cisco Systems Inc., graphco@..., networking
- Q&A 2006-01-08
- Add network redundancy with Cisco HSRP
- Are you using a single router/switch as your gateway to the outside world? What do you do when it goes down? Alleviate this worry with network redundancy. Robert McIntire explains how to do it with the help of Cisco's HSRP protocol.In the computing world, it’s imperative to build some level...
- Tags: LANs, NETWORKING, Network technology, Robert McIntire, network, VLAN, network redundancy, router, Layer 3, fault-tolerance, server, Cisco Systems Inc.
- Technical articles 2001-11-12
- Gateway Load Balancing Protocol Overview
- This paper describes the Gateway Load Balancing Protocol GLBP feature of Cisco IOS Software. Cisco continues to develop the core technologies demanded by Enterprises, in response to customers' wants and needs. GLBP was developed to provide automatic, first-hop gateway load balancing, which allows for more efficient resource usage and reduced...
- Tags: Gateway Inc., Load Balancing, Cisco Systems Inc.
- White papers 2004-09-01
- Cisco MWR 1941 Router Redundancy
- The Cisco MWR 1941-DC-A Mobile Wireless Edge Router can be used either in a redundant configuration or as a standalone device. For redundancy, the Cisco MWR 1941 uses the existing Hot Standby Router Protocol HSRP feature and provides 1:1 redundancy for the cell site router. The 1:1 redundancy solution requires...
- Tags: Router, Cisco Systems Inc., Custom Y-cable, Routers & Switches, Network Technology, Networking
- White papers 2007-07-01
- Dual ISP with Cisco 2801 and 5510
- Hi,We have a cisco 2801 which we use to route our internet traffic and a ASA 5510 we use as a firewall with VPN. We have NAT set up on the 5510. We also have a backup cable internet line we can use if the primary line goes offline. Our...
- Tags: Cable, Network technology, NETWORKING, Broadband Internet, rik@..., primary line, internet traffic, Internet, Cisco Systems Inc.
- Discussion threads 2007-10-22
- GLBP - Gateway Load Balancing Protocol
- Gateway Load Balancing Protocol GLBP protects data traffic from a failed router or circuit, like Hot Standby Router Protocol HSRP and Virtual Router Redundancy Protocol VRRP, while allowing packet load sharing between a groups of redundant routers. The GBPL feature provides automatic router backup for IP hosts configured with a...
- Tags: Gateway Inc., Router, Load Balancing, Gateway Load Balancing Protocol, GBPL Feature, Routers & Switches, Network Technology, Networking
- White papers 2007-11-18
- bootp server port open
- A security audit of a network I designed found that port 67udp is open on two "sets" of routers/switches. The routers are part of redundancy groups, so there is a primary router and switch with an etherchannel connection to the secondary switch and router. Although "no ip bootp server" is...
- Tags: networking, router, segraves@..., server
- Q&A 2005-01-05
- Why OSPF if I only have 2 routers
- My IT dept insists we run OSPF with only 2 routers. The routers are redundant backup for each other. Is the overhead and convergence time causing too much traffic and delaying fail over respectively. Exactly why is this not a good idea.Thanks,robertThere is only one possible reason why it isn't...
- Tags: Routers & switches, Network technology, NETWORKING, Open Shortest Path First, router
- Q&A 2006-04-12
- BCMSN - Building Cisco Multilayer Switched Networks v3.0
- View Available Dates and LocationsLearn to implement campus networks using multilayer switching technologies over high-speed Ethernet and wireless topologies. This course addresses the integration of routing and switching technologies to create an efficient campus network. Design, build, and configure a campus network with device and link redundancy for high reliability,...
- Tags: Schaumburg, Network, Toronto, Atlanta, Ottawa, Cisco Systems Inc., Chicago, Campus Network, Wi-Fi, Networking, Wireless
- Training 2008-01-01
- Configure WCCP on your Cisco IOS router
- What is the Web cache communications protocol WCCP, and how can it help you? David Davis introduces you to WCCP, tells you about its advantages, and explains how to configure it on a Cisco router. You can use the Web cache communications protocol WCCP to redirect traffic (usually...
- Tags: Web, Cisco IOS, Cisco Systems Inc., Routers & switches, Channel management, Network technology, NETWORKING, Web browser, David Davis CCIE, MCSE+I, SCSA, Web cache communications protocol, router, Cisco Routers and Management Newsletter, David Davis, Marketing
- Technical articles 2007-04-12
- CCIE Routing and Switching Mock Labs Boot Camp
- View Available Dates and LocationsThis intensive, lab-based course is the second in our curriculum designed specifically to prepare you for the CCIE Routing and Switching Lab Exam. The course consists of five complete CCIE Routing and Switching mock labs, written and supported by our CCIE-certified instructors and...
- Tags: IPv4, IPv6, Lab, BGP, Networking
- Training 2008-01-01
- Send e-mail with your Cisco router
- Did you know your Cisco router could send you an e-mail? Until recently, I would have said that it wasn't possible, but today, I'll show you how to do it. And we won't stop there: I'll tell you where to find some other scripts that you can use on your...
- Tags: Cisco IOS, Cisco Router, Router, Script, Cisco Systems Inc., E-mail, Tool, Routers & Switches, Network Technology, Networking, David Davis
- Blog posts 2008-03-13
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