Quotes About Routers

The configuration in Example 33-8 works, but in many cases, routers might have multiple ntp server commands configured for redundancy. The goal is to have at least one usable clock source (servers per multiple ntp server commands, or internal clock as per the ntp master command). The router then chooses the best NTP clock source based on the stratum level. The stratum level defines the quality of the clock source; the lower the stratum, the better the source.

Analyzing Topology Using CDP and LLDP The first two major sections of this chapter showed two features—Syslog and NTP—that work the same way on both routers and switches. This final section shows yet another feature common to both routers and switches, with two similar protocols: the Cisco Discovery Protocol (CDP) and the Link Layer Discovery Protocol (LLDP). This section focuses on CDP, followed by LLDP.

Examining Information Learned by CDP CDP discovers basic information about neighboring routers and switches without needing to know the passwords for the neighboring devices. To discover information, routers and switches send CDP messages out each of their interfaces. The messages essentially announce information about the device that sent the CDP message. Devices that support CDP learn information about others by listening for the advertisements sent by other devices.

The first commercial routers came out about 1986, and services came in 1987.

I think long-term, Bitcoin is a currency of the Internet. So, even if humans don't use it, routers will use it. Web browsers will use it. Web servers will use it.

Personally, I just got one of these Vonage IP phones. It's actually pretty cool. It comes with one of these Cisco ATA routers where you just plug an analog handset in.

Remember that a computer is for computing and routers for routing

Women are the routers and amplifiers of the social web. And they are the rocket fuel of ecommerce.

In a great market—a market with lots of real potential customers—the market pulls product out of the startup. This is the story of search keyword advertising, Internet auctions, and TCP/IP routers. Conversely, in a terrible market, you can have the best product in the world and an absolutely killer team, and it doesn't matter—you're going to fail.3

Just a maintenance tech here, folks, heading home after a long night of rebooting routers. That's all. I am definitely not an indent making a daring escape with ten zettabytes of stolen company data in his pocket. Nosiree.

The routers get involved in this and they know that on the path between this router and that router a certain percentage of the bandwidth is reserved to these things and a certain percentage of it is allowed on a first come first served basis.

The frantic stupidity of Wall Street's stock order routers and algorithms was simply an extension into the computer of the willful ignorance of its salespeople.

For years, the US government loudly warned the world that Chinese routers and other Internet devices pose a "threat" because they are built with backdoor surveillance functionality that gives the Chinese government the ability to spy on anyone using them. Yet what the NSA's documents show is that Americans have been engaged in precisely the activity that the United States accused the Chinese of doing.

The NSA routinely receives—or intercepts—routers, servers, and other computer network devices being exported from the United States before they are delivered to the international customers. The agency then implants backdoor surveillance tools, repackages the devices with a factory seal, and sends them on.

By 1988, I'm seeing this commercial phenomenon beginning to show up. Hardware makers are selling routers to universities so they can build up their campus networks. So I remember thinking, 'Well, how are we going to get this in the hands of the general public?' There were no public Internet services at that point.

It's important for you to understand that routers, which work at the Network layer, don't care about where a particular host is located. They're only concerned about where networks are located and the best way to reach them—including remote ones. Routers are totally obsessive when it comes to networks. And for once, this obsession is a good thing! The Data Link layer is responsible for the unique identification of each device that resides on a local network.

The Internet is just a bunch of servers and broadband cables and routers that traffic data around the world. But I think now the Internet is starting to become an entity that society views as a human thing.