Web Management Guide-R07
Table Of Contents
- How to Use This Guide
- Contents
- Figures
- Tables
- Getting Started
- Introduction
- Key Features
- Description of Software Features
- Configuration Backup and Restore
- Authentication
- Access Control Lists
- Port Configuration
- Rate Limiting
- Port Mirroring
- Port Trunking
- Storm Control
- Static MAC Addresses
- IP Address Filtering
- IEEE 802.1D Bridge
- Store-and-Forward Switching
- Spanning Tree Algorithm
- Virtual LANs
- IEEE 802.1Q Tunneling (QinQ)
- Traffic Prioritization
- Quality of Service
- IP Routing
- Address Resolution Protocol
- Multicast Filtering
- Link Layer Discovery Protocol
- System Defaults
- Introduction
- Web Configuration
- Using the Web Interface
- Basic Management Tasks
- Displaying System Information
- Displaying Hardware/Software Versions
- Configuring Support for Jumbo Frames
- Displaying Bridge Extension Capabilities
- Managing System Files
- Setting the System Clock
- Configuring the Console Port
- Configuring Telnet Settings
- Displaying CPU Utilization
- Configuring CPU Guard
- Displaying Memory Utilization
- Resetting the System
- Using Cloud Management
- Interface Configuration
- VLAN Configuration
- Address Table Settings
- Spanning Tree Algorithm
- Congestion Control
- Class of Service
- Quality of Service
- VoIP Traffic Configuration
- Security Measures
- AAA (Authentication, Authorization and Accounting)
- Configuring User Accounts
- Web Authentication
- Network Access (MAC Address Authentication)
- Configuring HTTPS
- Configuring the Secure Shell
- Access Control Lists
- Filtering IP Addresses for Management Access
- Configuring Port Security
- Configuring 802.1X Port Authentication
- DoS Protection
- DHCP Snooping
- IPv4 Source Guard
- ARP Inspection
- Basic Administration Protocols
- Configuring Event Logging
- Link Layer Discovery Protocol
- Power over Ethernet
- Simple Network Management Protocol
- Configuring Global Settings for SNMP
- Setting the Local Engine ID
- Specifying a Remote Engine ID
- Setting SNMPv3 Views
- Configuring SNMPv3 Groups
- Setting Community Access Strings
- Configuring Local SNMPv3 Users
- Configuring Remote SNMPv3 Users
- Specifying Trap Managers
- Creating SNMP Notification Logs
- Showing SNMP Statistics
- Remote Monitoring
- Switch Clustering
- Setting a Time Range
- LBD Configuration
- Smart Pair Configuration
- Multicast Filtering
- Overview
- Layer 2 IGMP (Snooping and Query for IPv4)
- Configuring IGMP Snooping and Query Parameters
- Specifying Static Interfaces for a Multicast Router
- Assigning Interfaces to Multicast Services
- Setting IGMP Snooping Status per Interface
- Filtering IGMP Query Packets and Multicast Data
- Displaying Multicast Groups Discovered by IGMP Snooping
- Displaying IGMP Snooping Statistics
- Filtering and Throttling IGMP Groups
- MLD Snooping (Snooping and Query for IPv6)
- Filtering and Throttling MLD Groups
- Filtering MLD Query Packets on an Interface
- IP Tools
- IP Configuration
- General IP Routing
- Unicast Routing
- Overview
- Configuring the Routing Information Protocol
- Configuring General Protocol Settings
- Clearing Entries from the Routing Table
- Specifying Network Interfaces
- Specifying Passive Interfaces
- Specifying Static Neighbors
- Configuring Route Redistribution
- Specifying an Administrative Distance
- Configuring Network Interfaces for RIP
- Displaying RIP Interface Settings
- Displaying Peer Router Information
- Resetting RIP Statistics
- IP Services
- Appendices
- Glossary
Chapter 4
| Interface Configuration
Sampling Traffic Flows
– 143 –
Sampling Traffic Flows
The flow sampling (sFlow) feature embedded on this switch, together with a
remote sFlow Collector, can provide network administrators with an accurate,
detailed and real-time overview of the types and levels of traffic present on their
network. The sFlow Agent samples 1 out of n packets from all data traversing the
switch, re-encapsulates the samples as sFlow datagrams and transmits them to the
sFlow Collector. This sampling occurs at the internal hardware level where all traffic
is seen, whereas traditional probes will only have a partial view of traffic as it is
sampled at the monitored interface. Moreover, the processor and memory load
imposed by the sFlow agent is minimal since local analysis does not take place. The
wire-speed transmission characteristic of the switch is thus preserved even at high
traffic levels.
Note:
The terms “collector”, “receiver” and “owner”, in the context of this chapter, all
refer to a remote server capable of receiving the sFlow datagrams generated by the
sFlow agent of the switch.
As the Collector receives streams from the various sFlow agents (other switches or
routers) throughout the network, a timely, network-wide picture of utilization and
traffic flows is created. Analysis of the sFlow stream(s) can reveal trends and
information that can be leveraged in the following ways:
◆ Detecting, diagnosing, and fixing network problems
◆ Real-time congestion management
◆ Understanding application mix (P2P, Web, DNS, etc.) and changes
◆ Identification and tracing of unauthorized network activity
◆ Usage accounting
◆ Trending and capacity planning
Configuring sFlow
Receiver Settings
Use the Interface > sFlow (Configure Receiver – Add) page to create an sFlow
receiver on the switch.
Parameters
These parameters are displayed:
◆ Receiver Owner Name
2
– The name of the receiver. (Range: 1-256 characters;
Default: None)
2. Sampling must be disabled by setting the time out to 0 before these fields can be
configured.