It is not a complete necessity to have a gigabit Ethernet switch but it will increase processing speed to 1,000 Mbits per second. Earlier forms of the Ethernet switches were in the 10 to 100 megabit range.
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Most Cisco phones act as a two-port switch, with one port facing the network and the other port for attaching a desktop device like a PC.
Greater than 8
The "WRVS4400N" is a Wireless-N Gigabit router developed by Cisco. It comes with a four-port switch, an integrated firewall, a dedicated DMZ port, both DHCP and NAT support any many more features.
You mean Ethernet switch? There are many of them: 3COM, ASUS, CISCO, D-Link, Edimax, Linksys (now part of CISCO) and many others.
There are many places where one can purchase a 48 port Gigabit switch. One can buy this product on the Amazon, Best Buy, eBay, Newegg, and TigerDirect websites.
Uplink connections are typically used to connect the switch to a higher level switch, that is more powerful and closer to the backbone.On basic switch models, the regular ports are MDIX ports, meant to connect directly to a PC. The Uplink port is then an MDI port, which can connect (with a straight cable) to an MDIX port on a different switch. Often the highest numbered port (8, 16, or 24 for instance) has one MDIX port in the regular set and an MDI uplink next to it, but you can only use one of these two.You can use a crossover cable to connect MDIX to MDIX or MDI to MDI port.On more modern switches, ports are often MDI/MDIX autosensing and this reason for existence of uplink ports has passed (all Gigabit Ethernet has this, and many 100 Mbit Ethernet).In the mean time, however, switch models have come into being which have faster speed uplink ports. For instance, 10 Mbit switches with 1 or 2 100 Mbit ports to connect to the core network, or these days 100 Mbit switches with a few Gigabit ports.
The command "show vtp status" will show you how many vlans are supported by the switch. The Cisco 2950 switch supports up to 64 VLANs.
On the contrary, the Cisco Catalyst 2960 is a very well-known product. This switch is widely used in many small businesses. There are few which are unhappy with this switch.
A router will typically support between 4 and 8 ports. For additional ports, a standard Ethernet switch can be connected to one of the ports.
2 Ports on the router however you can add more cards to the device. In a 2821 you can add 4 cards such as WICs and in a 2811 you can add 2 cards.