qr code c# sample You can have a total of six EtherChannels on a switch in Objective-C

Create QR Code JIS X 0510 in Objective-C You can have a total of six EtherChannels on a switch

You can have a total of six EtherChannels on a switch
QR-Code Generator In Objective-C
Using Barcode drawer for iPhone Control to generate, create QR Code image in iPhone applications.
Create Barcode In Objective-C
Using Barcode drawer for iPhone Control to generate, create barcode image in iPhone applications.
EtherChannel Operations
Print QR Code In Visual C#
Using Barcode generator for .NET Control to generate, create QR-Code image in .NET framework applications.
Encoding QR-Code In .NET
Using Barcode drawer for ASP.NET Control to generate, create QR Code JIS X 0510 image in ASP.NET applications.
Channels can be formed dynamically between devices by using one of two protocols: Port Aggregation Protocol (PAgP) or Link Aggregation Control Protocol (LACP), compared in Table 14-3 Remember that ports participating in a channel must be configured identically Once a channel is formed, load balancing can be used by the connected devices to utilize all the ports in the channel Load balancing is performed by reducing part of the binary addressing in the frame or packet to a numeric value and then associating the numeric value to one of the ports in the channel Load balancing can use MAC or IP addresses, source or destination addresses, or both source and destination address pairs With this fashion, you are guaranteed that all links in the channel will be utilized; however, you are not guaranteed that all the ports will be utilized the same For example, if you are load balancing based on source addresses, you are guaranteed that different source MAC addresses will use different ports in the channel All traffic from a single-source MAC address, however, will always use the same port in the channel Given this situation, if you have one device generating a lot of traffic, that link will possibly be utilized more than other links in the channel In this situation, you might want to load balance based on destination or both source and destination addresses
Painting QR In VS .NET
Using Barcode encoder for VS .NET Control to generate, create QR Code image in Visual Studio .NET applications.
Drawing QR In VB.NET
Using Barcode generation for .NET Control to generate, create Quick Response Code image in .NET applications.
TABLE 14-3
Encoding Bar Code In Objective-C
Using Barcode printer for iPhone Control to generate, create barcode image in iPhone applications.
Encode EAN / UCC - 13 In Objective-C
Using Barcode creator for iPhone Control to generate, create USS-128 image in iPhone applications.
Protocols
Painting UPC-A Supplement 5 In Objective-C
Using Barcode encoder for iPhone Control to generate, create UPC Code image in iPhone applications.
GS1 - 13 Maker In Objective-C
Using Barcode printer for iPhone Control to generate, create European Article Number 13 image in iPhone applications.
PAgP LACP
Bar Code Maker In Objective-C
Using Barcode generation for iPhone Control to generate, create bar code image in iPhone applications.
Barcode Maker In Objective-C
Using Barcode maker for iPhone Control to generate, create barcode image in iPhone applications.
Description
Making UCC - 12 In Objective-C
Using Barcode encoder for iPhone Control to generate, create UPCE image in iPhone applications.
Print EAN13 In VB.NET
Using Barcode creator for VS .NET Control to generate, create European Article Number 13 image in .NET applications.
Proprietary to Cisco It allows connected devices to group similarly configured ports dynamically into a single channel Defined in the IEEE 8023ad standard Like PAgP, it learns from a connected device which ports between the two are identically configured and dynamically forms a channel between them
Barcode Printer In None
Using Barcode generation for Font Control to generate, create barcode image in Font applications.
UCC.EAN - 128 Generation In Java
Using Barcode creation for Java Control to generate, create GTIN - 128 image in Java applications.
EtherChannel Protocols
Paint Bar Code In VB.NET
Using Barcode maker for Visual Studio .NET Control to generate, create barcode image in .NET applications.
EAN13 Creation In None
Using Barcode encoder for Font Control to generate, create EAN13 image in Font applications.
14: Switches and Redundancy
Bar Code Creator In Java
Using Barcode creation for BIRT Control to generate, create bar code image in BIRT reports applications.
Encode EAN / UCC - 13 In None
Using Barcode encoder for Office Excel Control to generate, create GTIN - 13 image in Excel applications.
To configure load balancing properly for a channel, you must understand the traffic patterns in your network Once you understand your traffic patterns, you can get the most utilization out of your channel by choosing the correct load balancing type
EtherChannel Con guration
As mentioned, you should make sure that all interfaces in the channel are configured identically (configuring interface properties were discussed in 11); otherwise, a channel might not form Here is the configuration to set up an EtherChannel:
Switch(config)# interface type [slot_#/]port_# Switch(config-if)# channel-group group_# mode mode Switch(config-if)# port-channel load-balance {dst-ip|dst-mac| src-dst-ip|src-dst-mac|src-ip|src-mac}
The group_# specifies the channel group to which the interface belongs, which can be from 1 to 6 (remember that you can have up to six EtherChannels on your switch) The mode can be one of those listed in Table 14-4 When using PAgP, one side needs to be configured as desirable and the other side as desirable or auto; or you can configure both sides to be on When using LACP, one side needs to be active and the other side can be active or passive The port-channel load-balance command configures the type of load balancing you want to use on the channel If you omit this command, it defaults to load balancing based on source MAC addresses (src-mac)
TABLE 14-4
EtherChannel Modes
Mode
auto desirable on active passive
Protocol
PAgP PAgP PAgP LACP LACP
Description
Passively listens for PAgP queries from a Cisco device configured with either desirable or on By default the interface is not part of a channel Generates PAgP queries to form a channel, but by default is not part of a channel Generates PAgP queries and assumes the port is part of a channel Enables a channel if the other side responds to its LACP messages Passively listens for LACP messages to form a channel from an active port
STP Troubleshooting
CERTIFICATION OBJECTIVE 1405
STP Troubleshooting
Troubleshooting problems created by loops can be a difficult task This section covers some simple steps you can take to identify and fix layer 2 loop problems
Loop Identi cation
One indication of a broadcast storm is very high CPU and port utilization on your switches The best way to identify a layer 2 loop is to capture and analyze traffic with a protocol analyzer to determine whether the same packet appears multiple times This is typically done by connecting your protocol analyzer to a switch and using the Switch Port Analyzer (SPAN) feature on your switch, which copies frames from an interface or VLAN to the SPAN port A good protocol analyzer should be able to see that a loop exists and notify you of this problem Once a loop is identified, to restore connectivity quickly, you should start disabling ports that are part of the loop; then diagnose the problem to determine whether a configuration issue on your part or the addition of a new layer 2 device is causing the problem If you are having problems identifying what is causing the loop, turn on debug for STP (debug spanning-tree events)
Copyright © OnBarcode.com . All rights reserved.