Cisco routers are for teleworkers, small offices, small to medium-sized businesses, and enterprise branch and head offices.
Cisco routers provide high availability, comprehensive security, integrated wireless, ease of management, and advanced Quality of Service (QoS) for today’s most demanding network services, including IP communications, video, customer relationship management, financial transactions, and other real-time applications.
Cisco Integrated Services Routers: Cisco 860, 880, 890, Cisco 1800 (fixed), Cisco 1800 (modular), Cisco 1900, Cisco 2800, 2900, 3800, 3900 Series
Cisco Aggregation Routers: Cisco 7200, 7301, 7304, ASR 1000, Cisco 7600, Catalyst 6500 Series
Cisco Integrated Services Routers: Increase the power of the network and optimize branch services on a single platform, while gaining a superior user experience.
Featured Cisco Routers: Cisco ISR G2
Cisco 3900 Series, for Medium-sized to Large Businesses and Enterprise Branch Offices
• Delivers scalable rich-media services including TelePresence, highest density of service virtualization, and lowest TCO with energy efficiency
• Ideal for high-end deployments requiring business continuity, WAN flexibility, superior collaboration capabilities, and investment protection
• Field-upgradeable motherboard, circuit-speed WAN performance up to 350 Mbps with services such as security, mobility, WAN optimization, unified communications, video, and customized applications
• 3 RU modular form factor
Cisco 2900 Series, for Small- to Medium-sized and Enterprise Branch Offices
• Provides rich-media services including TelePresence, service virtualization, and lower TCO with energy efficiency
• Ideal for mid-range deployments requiring business agility, WAN flexibility, and secure collaboration
• Circuit-speed WAN performance up to 75 Mbps with services such as security, mobility, WAN optimization, unified communications, video, and customized applications
• 1-2 RU modular form factor
Cisco 1900 Series, Small Offices and Small Enterprise Branch Offices
• Entry-level secure WAN deployments, offers service virtualization, and low TCO
• Ideal for small offices requiring modular flexibility for highly secure mobility and customizable applications
• Circuit-speed performance up to 25 Mbps with concurrent services
• Factory-selectable 802.11n access point and double-wide HWIC support; desktop form factor
Cisco 800 Series, for Small Offices and Teleworker Deployments
• Provides secure WAN connectivity with desktop form factor
• Ideal for telecommuters and small offices
• Wire-speed performance with secure data services for xDSL, cable, and Ethernet WAN environments
• Factory-selectable 802.11n access point, 3G WAN, and Survivable Remote Site Telephony (SRST) options
Cisco Integrated Services Routers G1:
Cisco 1800 Integrated Services Routers:
• Designed for small to medium-sized businesses and small enterprise branch offices
• Available in both fixed and modular configurations
• Wire-speed performance with secure data services enabled at up to T1,E1, or xDSL rates
• Business-class security with stateful firewall with URL filtering, VPN 3DES encryption and Advanced Encryption Standard (AES), Dynamic Multipoint VPN, IPS, and secure wireless LAN option
• Secure WLAN option for simultaneous 802.11a and 802.11b/g operation with use of multiple antennas
Cisco 2800 Series Integrated Services Routers
• Designed for small to medium-sized businesses and enterprise branch offices
• Wire-speed performance up to multiple T1/E1/ xDSL rates, increased services density for security, voice, caching, video, network analysis, and L2; and switching
• Security features include hardware-based VPN acceleration antivirus defense, IPS, and SDM support
Cisco 3800 Series Integrated Services Routers
• Designed for medium-sized to large businesses and enterprise branch offices
• Wire-speed performance with services enabled at up to T3/E3 rates; increased services density for security, voice, caching, video, network analysis, and L2
• Security features include hardware-based VPN acceleration, antivirus defense through Network Admission Control, IPS, and SDM support
Cisco Aggregation Routers:Differentiate your service portfolio and increase revenues by delivering end-to-end scalable solutions and subscriber-aware services.
Cisco 7200 Series Routers
• Application versatility supports managed network services, WAN and broadband aggregation, MPLS, VPN, QoS, and multiservice environments
• Business-class security includes stateful inspection firewall, software and hardware VPN encryption, service-level validation features, and intrusion detection
• Multiservice data/voice features include analog and digital voice, Survivable Remote Site Telephony, and multiservice interchange (MIX)-enabled backplane
Cisco 7600 Series Routers
• Ideal for enterprise wide-area or metropolitan-area network aggregation or service-provider environments
• Business-class security supports services modules including IPSec, firewall, SSL VPN, and IPS
• Supports up to four slots for redundant supervisors and line cards; 6-, 9-, and 13-slot chassis available
• Support for up to 12 Shared Port Adapter (SPA) bays and SPA Interface Processors (SIP) for intelligent services
Cisco ASR 1000 Series Routers
• Ideal for service providers and enterprises seeking leading performance with compact form factor
• Allows current and future services to be switched on instantly, at line rate, without compromising network performance or availability, using the Innovative Cisco QuantumFlow processor
• Delivers highly secure, high-performance, and integrated software-enabled services (no service blades required), including multi-gigabit encryption, broadband, 20 and 40 Gbps firewall, Network- Based Application Recognition (NBAR), Flexible Packet Matching and session border control
• Establishes new price and performance class for edge routers that deliver service integration for personalized, residential "any play" and complex business services
• Provides powerful resiliency with convenient and cost-saving in-service software upgrade (ISSU) capability
• Offers software redundancy on non-redundant hardware with ASR 1002 and ASR 1004 routers
• Offers highly scalable, redundant hardware and 40 Gbps services and interface processors in the ASR 1006 and ASR 1013 routers
ASR 9000 Series Aggregation Services Routers
• Offers nonstop video, enhanced scalability, and reduced carbon footprint
• Ideal for carriers offering residential, mobile and business services
• Scales up to 96 Tbps per system with comprehensive system redundancy
• Offers unique service- and application-level intelligence
Cisco XR 12000/12000 Series Router
• Extends highly secure virtualization and integral service delivery
• Ideal for large enterprises and service providers
• Features Cisco I-Flex (PDF - 677 KB), which prioritizes voice, video, and data services
• Offers continuous system operation and multiservice scale
Tuesday, April 10, 2012
Friday, April 6, 2012
How to Use Cisco Static Routes?
Static cisco routes while manually intensive to keep up, are a very quick and effective way to route data from one subnet to different subnet. Let’s start with the basics.
What is a static router?
- a static route is a hard coded path in the router that specifies how the router will get to a certain subnet by using a certain path.
What do you mean by "hard coded"?
- you or someone has typed in the network ID and the next hop to get to the network specified
How do I add a static route into my Cisco router?
- Pretty simple
router# config t ; get into the configuration mode
router(config)# ip route A.B.C.D (destination network/host) A.B.C.D (mask) A.B.C.D (next hop); this is a simple static route
Are there any other ways to name the next hop except by using an IP address?
- Yes, you can use the port name i.e. ethernet0, E0, S0 and so on
What is "distance metric" that I can add at the end of the command?
- All routes have a value that allows the router to give a priority to which type of routing is used first. In static routes, the value is 1 which means no matter what other protocol you may have running like OSPF or RIP, the static route will always be used first. This can be changed to special needs. for example, if you have a frame link with ISDN back up, you can static routes for the frame and a second set of the same static router but with a distance matric of 255. This means while the frame is up, it goes first but when the frame goes down, the router will try to use the 2nd static which is normally ignored due to the 255 value.
Why do I want to use static routes when there are neat routing protocols like OSPF?
- static routes are easy, no overhead either on the link or the the CPU of the router. They also offer good security when coupled with a tight IP mask like 252 which gives only 2 hosts on a given link
If static routes are so easy, why not use them all the time?
- Static routes while easy can be overwhelming in a large or complicated network. Each time there is a change, someone must manually make changes to reflect the change. If a link goes down, even if there is a second path, the router would ignore it and consider the link down.
One of the most common uses of a static map is the default classless route
- ip classless
- ip route 0.0.0.0 0.0.0.0 [next hop]
This static map says that everything is remote and should be forwarded to the next hop( or supernet) which will take care fo the routing.
Dial on demand is also a big user of static routes. Many times with dial up or ISDN, you do not have the bandwidth or you do not want to pay the connection fees for routing updates so you use static routes.
Static routes allow you to set up load balancing after a fashion. Keep in mind that the IOS load balances across routes first and not interfaces. The easiest way to configure multiple routes on the same interface is to use the secondary IP command
Router 1
!
interface serial 0
ip address 192.0.0.1 255.255.255.0
ip address 192.0.0.2 255.255.255.0 secondary ! second route on same interface
interface serial 1
ip address 192.1.0.1 255.255.255.0
ip address 192.1.0.2 255.255.255.0 secondary
ip route 200.2.0.0 255.255.255.0 196.0.0.4; goes to serial 0
ip route 200.2.0.0 255.255.255.0 196.0.0.5; goes to serial 0
ip route 200.2.0.0 255.255.255.0 196.1.0.4; goes to serial 1
Router 2
!
interfaceethernet 0
ip address 200.2.0.1 255.255.255.0
!
interface serial 0
ip address 196.0.0.4 255.255.255.0
ip address 196.0.0.5 255.255.255.0 secondary
!
interface serial 1
ip address 196.1.0.4 255.255.255.0
ip address 196.1.0.5 255.255.255.0 secondary
The traffic would go out router 1 across the two IPs on serial 0 first then across 1 IP on serial 1
This gives you unequal load balancing.
Notes: This is just the basics of static routing. You can get very creative if you want and take things further then described here. I would suggest "Routing TCP/IP Vol 1" from Cisco Press for more information.
What is a static router?
- a static route is a hard coded path in the router that specifies how the router will get to a certain subnet by using a certain path.
What do you mean by "hard coded"?
- you or someone has typed in the network ID and the next hop to get to the network specified
How do I add a static route into my Cisco router?
- Pretty simple
router# config t ; get into the configuration mode
router(config)# ip route A.B.C.D (destination network/host) A.B.C.D (mask) A.B.C.D (next hop); this is a simple static route
Are there any other ways to name the next hop except by using an IP address?
- Yes, you can use the port name i.e. ethernet0, E0, S0 and so on
What is "distance metric" that I can add at the end of the command?
- All routes have a value that allows the router to give a priority to which type of routing is used first. In static routes, the value is 1 which means no matter what other protocol you may have running like OSPF or RIP, the static route will always be used first. This can be changed to special needs. for example, if you have a frame link with ISDN back up, you can static routes for the frame and a second set of the same static router but with a distance matric of 255. This means while the frame is up, it goes first but when the frame goes down, the router will try to use the 2nd static which is normally ignored due to the 255 value.
Why do I want to use static routes when there are neat routing protocols like OSPF?
- static routes are easy, no overhead either on the link or the the CPU of the router. They also offer good security when coupled with a tight IP mask like 252 which gives only 2 hosts on a given link
If static routes are so easy, why not use them all the time?
- Static routes while easy can be overwhelming in a large or complicated network. Each time there is a change, someone must manually make changes to reflect the change. If a link goes down, even if there is a second path, the router would ignore it and consider the link down.
One of the most common uses of a static map is the default classless route
- ip classless
- ip route 0.0.0.0 0.0.0.0 [next hop]
This static map says that everything is remote and should be forwarded to the next hop( or supernet) which will take care fo the routing.
Dial on demand is also a big user of static routes. Many times with dial up or ISDN, you do not have the bandwidth or you do not want to pay the connection fees for routing updates so you use static routes.
Static routes allow you to set up load balancing after a fashion. Keep in mind that the IOS load balances across routes first and not interfaces. The easiest way to configure multiple routes on the same interface is to use the secondary IP command
Router 1
!
interface serial 0
ip address 192.0.0.1 255.255.255.0
ip address 192.0.0.2 255.255.255.0 secondary ! second route on same interface
interface serial 1
ip address 192.1.0.1 255.255.255.0
ip address 192.1.0.2 255.255.255.0 secondary
ip route 200.2.0.0 255.255.255.0 196.0.0.4; goes to serial 0
ip route 200.2.0.0 255.255.255.0 196.0.0.5; goes to serial 0
ip route 200.2.0.0 255.255.255.0 196.1.0.4; goes to serial 1
Router 2
!
interfaceethernet 0
ip address 200.2.0.1 255.255.255.0
!
interface serial 0
ip address 196.0.0.4 255.255.255.0
ip address 196.0.0.5 255.255.255.0 secondary
!
interface serial 1
ip address 196.1.0.4 255.255.255.0
ip address 196.1.0.5 255.255.255.0 secondary
The traffic would go out router 1 across the two IPs on serial 0 first then across 1 IP on serial 1
This gives you unequal load balancing.
Notes: This is just the basics of static routing. You can get very creative if you want and take things further then described here. I would suggest "Routing TCP/IP Vol 1" from Cisco Press for more information.
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