expires is a Web server response message header field that, in response to an HTTP request, tells the browser that the browser can cache data directly from the browser before the expiration time, without having to request it again.
Cache-control
Cisco6506 Switch upgrades iOS detail process
Cisco6506 Upgrade iOS Operating manual
Key Words:
L The whole process can not reboot the device, can not lose power
L System configuration files are not affected
1. Check Equipment System files
1. Enter the global configuration mode.
Select Switch-3548> enablePassword :********Change-3548 # config tChange-3548 (config )#
2. Enable the HTTP Server of the vswitch
Switch-3548 (config) # ip http server
3. Configure the Host Name
Switch-
The Catalyst3550 switch with EMI supports three routes or bridged three-tier interfaces:
Svis: You should configure Svis for any VLAN you want to route traffic to. When you enter a VLAN ID after the interface VLAN Global Configuration command, the
This article discusses the issue of the second IP communication between the core switch and the converged switch interface.
When the core switch is configured with a second IP, the converged switch is connected to the core switch via trunk, and the
1, into the global configuration mode
Switch-3548 > Enable
Password: ********
Switch-3548 # config T
Switch-3548 (config) #
2, enable the switch HTTP Server
Switch-3548 (config) # IP HTTP Server
3, configure the host name
Switch-3548 (config)
In2013Year1Month17,AMDReleasedAMDCatalyst13.1And then announced the deletion of the auto-update feature.AMDThe reason is that there is a security problem in the automatic update. Recently, details about the security problem are reported on the
I. CAT4006 engine module WS-X4013 configuration listThese include: Basic settings, VLAN configuration, Channel configuration, and port Image Port 1/2 to connect to gigabit IDS)
Cisco Systems, Inc. Console
Enter password:CAT4006> enable
Enter
It was started and entered the Rommon mode because the system could not locate the boot file and could not configure Confreg 0x2102/confreg 0x2142
You can do this only through the following steps
Rommon 1 >confreg
Configuration Summary:
=> load
Original article, please be sure to place the following paragraph at the beginning of the article.This article forwards from the technical World , the original link http://www.jasongj.com/spark/rbo/
The contents of this article are based
Note:This is a comprehensive example. It can be seen from the topology that it contains devices and technologies. The following is a description of this example.1. for the internal LAN, Cisco's Catalyst 6506 is used as the central switch, and the second-level switch adopts the Catalyst 3500. To describe the Trunk, a Catalyst
power supply must be used on the Catalyst 6006/6506, and W or 1300W power supply can be used on the Catalyst.25 question: can the Catalyst 2900XL series switches stack with the Catalyst 3500XL series switches?Answer: A Catalyst 2
; 1000 BaseZX is applicable to single-mode optical fiber, the maximum distance is 100 km. C3500 mainly has four models: Catalyst 3508g xl: 8 GBIC slots Catalyst 3512 XL: 12 port 10/100 M adaptive, 2 port GBIC slots Catalyst 3524 XL: 24 port 10/100 M adaptive, 2 GBIC slots Catalyst 3548 XL: 48 Port 10/100 M adaptive, 2
; 1000 BaseLX/LH, multimode/single-mode optical fiber, and a maximum distance of 10 km; 1000 BaseZX is applicable to single-mode optical fiber, the maximum distance is 100 km.
There are four major C3500 models:
Catalyst 3508g xl: 8 GBIC slots
Catalyst 3512 XL: 12 port 10/100 M adaptive, 2 port GBIC slots
Catalyst 3524 XL: 24 port 10/100 M adaptive, 2 port GBIC sl
of switches, Catalyst 6000 and Catalyst 6500, both of which contain 6 or 9 slot models: 6006, 6009, 6506, and 6509, in particular, 6509 is the most widely used. All models support the same super engine and interface module, protecting users' investment. This series of features mainly include:High port density. Supports up to 384 10/100 BaseTx adaptive Ethernet p
switching cluster technology. It is said to be a commander for the 2900XL series.
This series of products for medium-sized enterprises and institutions, in providing high performance and low cost, while reducing the complexity, and easy integration into existing networks. It allows network administrators to use a standard Web browser. Manage geographically dispersed switches from anywhere on the network with a single IP address.
Specific examples are as follows:
Suppose the network Center us
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