Quotes About NTP

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.

NTP Using a Loopback Interface for Better Availability An NTP server will accept NTP messages arriving to any of its IPv4 addresses by default. However, the clients reference a specific IP address on the NTP server. That creates an availability issue.

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.

In March the two sides announced a settlement. NTP's persistent demand for royalties was off the table. Instead RIM would pay NTP a lump sum of $612.5 million. Thomas Campana did not live to see his case validated. The heavy smoker died of cancer in 2004. NTP's law firm, Wiley Rein, pocketed $245 million of the settlement, the largest contingency fee earned by any U.S. law firm that year.