Dell PowerConnect 5448 User's Guide - Page 19
Layer 3 Features, Quality of Service Features, For more information on DHCP - setup
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• Improved bandwidth granularity • High bandwidth server connectivity LAG is composed of ports with the same speed, set to full-duplex operation. For more information, see "Defining LAG Membership" on page 354. Link Aggregation and LACP LACP uses peer exchanges across links to determine, on an ongoing basis, the aggregation capability of various links, and continuously provides the maximum level of aggregation capability achievable between a given pair of systems. LACP automatically determines, configures, binds and monitors the port binding to aggregators within the system. For more information, see "Defining LACP Parameters" on page 352. Layer 3 Features Address Resolution Protocol (ARP) ARP is a TCP/IP protocol that converts IP addresses into physical addresses. ARP automatically determines Device Next-Hop MAC addresses of systems, including directly attached end systems. Users can override and supplement this by defining additional ARP Table entries. For more information, see "Mapping Domain Host" on page 136. TCP Transport Control Protocol (TCP) connections are defined between 2 ports by an initial synchronization exchange. TCP ports are identified by an IP address and a 16-bit port number. Octets streams are divided into TCP packets, each carrying a sequence number. BootP and DHCP Clients Dynamic Host Configuration Protocol (DHCP) enables additional setup parameters to be received from a network server upon system startup. DHCP service is an on-going process. DHCP is an extension to BootP. For more information on DHCP, see "Defining DHCP IPv4 Interface Parameters" on page 113. Quality of Service Features Class Of Service 802.1p Support The IEEE 802.1p signaling technique is an OSI Layer 2 standard for marking and prioritizing network traffic at the data link/MAC sub-layer. 802.1p traffic is classified and sent to the destination. No bandwidth reservations or limits are established or enforced. 802.1p is a spin-off of the 802.1Q (VLANs) standard. 802.1p establishes eight levels of priority, similar to the IP Precedence IP Header bit-field. For more information, see "Configuring Quality of Service" on page 411. Introduction 19