Cisco 4507 power inline : IEEE PD issues

Found this problem more than 3 times. when we disconnect the cisco ip phone from 4507 switch, and then connect again, it cannot power on any more, when I connect to 4507 switch, "show power inline" command displayed the port is " Ieee PD" cannot displayed the IP Phone 7945... but when I move the cable to Cisco Catalyst 3750, show power inline command, it dispalyed as IP Phone 7945.

We have the same issue in three 4507 switch, no matter what I change the new cable or new IP phone. doesn't work... I don't if the switch 4507 port have some problem or how to reset the power inline to default. or you may have the same problem before when you deployed the cisco IP phone to your network replace PBX phones.

The answer:

Here are some 4507 info:

System image file is "bootflash:cat4500-ipbasek9-mz.122-53.SG1.bin"

cisco WS-C4507R-E (MPC8540) processor (revision 13) with 524288K bytes of memory.

Processor board ID

MPC8540 CPU at 800Mhz, Supervisor V-10GE

Last reset from PowerUp

5 Virtual Ethernet interfaces

248 Gigabit Ethernet interfaces

4 Ten Gigabit Ethernet interfaces

511K bytes of non-volatile configuration memory.

1    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+   

2    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+  

  3     6  Sup V-10GE 10GE (X2), 1000BaseX (SFP)  WS-X4516-10GE     

4     6  Sup V-10GE 10GE (X2), 1000BaseX (SFP)  WS-X4516-10GE     

5    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+   

  6    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+   

7    48  10/100/1000BaseT (RJ45)V, Cisco/IEEE   WS-X4548-RJ45V+  

                        Watts used of Chassis Inline Power (-50V)

                        Inline Power Admin  Inline Power Oper

Mod   Model                PS     Device       PS     Device     Efficiency

----  -------------------  ----------------    ----------------    ----------

1    WS-X4548-RJ45V+        222      208         74       69          94

2    WS-X4548-RJ45V+        166      156         63       59          94

3    WS-X4516-10GE            -        -          -        -           -

4    WS-X4516-10GE            -        -          -        -           -

5    WS-X4548-RJ45V+        447      420        148      139          94

6    WS-X4548-RJ45V+        396      372        130      122          94

7    WS-X4548-RJ45V+        396      372        131      124          94

-------------------------  ----------------    ----------------    ----------

       Total                1627     1528        546      513

The issue at Module 5, all this Module 5 cannot provide the PoE now...  G5/* cannot provide the POE.

What's the difference between WS-X4548-RJ45V+ and WS-X4548-GB-RJ45V

WS-X4548-RJ45V+VS WS-X4548-GB-RJ45V:

WS-X4548-RJ45V+ overview:

. 48 ports

. 10/100/1000 (RJ-45)

. Cisco IOS Software Release 12.2(50)SG or later

. IEEE 802.3af/at and Cisco prestandard PoE, IEEE 802.3x flow control

. Bandwidth is allocated across six 8-port groups, providing 1 Gbps per port

group

. Capable of up to 30W of inline power per port

. Enterprise and commercial: designed to power next-generation IP phones,

wireless base stations, video cameras, and other PoE devices that require

power up to 30 watts

WS-X4548-GB-RJ45V Cisco Catalyst 4500 PoE IEEE 802.3af 10/100/1000, 48 Ports (RJ-45), the similar product is WS-X4648-RJ45V+E.

WS-X4548-GB-RJ45V:

. 48 ports

. 10/100/1000 (RJ-45)

. Cisco IOS Software Release 12.2(18)EW or later

. IEEE 802.3af and Cisco prestandard PoE, IEEE 802.3x flow control

. Bandwidth is allocated across six 8-port groups, providing 1 Gbps per port

group

. Enterprise and commercial: designed to power IP phones, wireless base

stations, video cameras, and other IEEE-compliant powered devices.

Difference between the WS-X6748-GE-TX and WS-X6748-SFP

Question: What are the architectural differences between the WS-X6748-GE-TX, WS-X6748-SPF and the WS-X6724-SPF (ports per ASICs, buffers Tx-Rx, fabric connections, etc.)? Also, if someone has information about the oversubscription rate of the cards it would be great.

Answer:  All modules need the Supervisor 720 although i guess you know that !.

The 6748 modules have dual 20Gbps connections to the switch fabric.

The 6724 has one 20Gbps connection to switch fabric.

So for the 48 ports blades they can run 48 x 1Gbps ports with a 40Gbps connection to the switch fabric.

The 24 port blade you can run 24 x 1Gb with a 20Gbps connection to the switch fabric.

So you do get oversubscription but nowhere near as bad as some of the other modules.

As for the buffers etc. rather than just cut and paste from the docs attached is a link for all the modules for the 6500. If you click on the relevant links you can get the stats from there.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_relevant_interfaces_and_modules.html

The similar cisco module you maybe interested, please click the below links:

WS-X4712-SFP+E

WS-X4548-RJ45V+

Guidelines for How to Buy Cisco switch

1 The core of local area network

For the network core, recommend the use of Catalyst 6500 (family 6500 catalyst Home Edition) to manage the LAN switch module. The tool provides the performance and the application aspect enough flexibility to cope with the core, and the layout of local area network, the main market, it also supports the integration of network services and the elastic properties of this kind of switch is the demand for large enterprises, especially in the users of the financial, education and medical care field.

"6500 Catalyst provides technical services to the best products, including sub-200-millisecond based (latency less than two hundred MS) controller VSS (virtual storage system, a video storage system) and quick failover enhanced version of the upgrade (EFSU)function, and Cisco IOSNetFLow have the same visibility rich," Conover said. "Catalyst 6500can also provide support for upward and downward compatibility, to protect the user'spurchase benefit."

2 Local area network access switch

Catalyst home 2K, 3K and 4K

For access to the LAN, recommended Cisco 3750. This product is popular because of its media applications function is very rich, such as video, it uses comprehensive simulation flow and Qos (quality of service, a solution to the problem of network delay andblocking technology) energy efficiency assessment, to ensure a good network quality. It can also be intelligent identification and video priority access to bandwidth guaranteed the userport. In addition, the network administrator can also monitor and through to the trackingnetwork video flow to identify any that may lead to the node flash or delay. Users can also infacing the future bandwidth demands greater, the Gigabit Ethernet upgrading the original to Gigabit ethernet.

3 Small switches

In a small switch products, recommended by Catalyst Switch 2960-C and 3560-C. These small switches provide extended services, can help users to simplify problems whenever and wherever possible to construct local area network has to face, and allow users to stay away from trouble wiring clutter.

About the switch selection and deployment tips

If you're more like fixed switch, then Catalyst 3750-X more appropriate; while Catalyst 4500Eis those who tend to modular product users preferred.

Catalyst 2960-S can be used alone, also can be used as part of combination of settings toconfigure (the optional combination module supports up to four switches to paralleloperation). But please note, the most suitable product or provide the highest one hundred and ninety-two access port for wiring cabinet branch network or space constraints. Similarly,Catalyst 3750-X switches can also be combined (maximum support nine switches to paralleloperation), and the most ideal working state is to support branch network or enterprise levelwiring requirements. In addition, Catalyst 3560-X actually is 3750-X twenty-four or forty-eight port independent version, used for small branch network of job requirements.

In the deployment of Catalyst 2960-S, 3560-X or 3750-X switch, intelligent Conover users are advised to use Cisco installation function. This technology can automatically configure theswitch through IOS software mirroring the Cisco, without user intervention. It adopts the dynamic IP address assignment and pre configured switch navigation to simplify the installation process. The switches are using automatic intelligent node of this feature toautomatically configure each device connected to the node, but also other equipment automatic detection of access network.

3Anetwork.com is a world leading Cisco networking products wholesaler, we wholesale original new Cisco networking equipments, including Cisco Catalyst switches, Cisco routers, Cisco firewalls, Cisco wireless products, Cisco modules and interface cards products, 3Anetwork.com are most competitive on Cisco switches, like Cisco 2960 switches, Cisco 3560V2 3560X switches, Cisco 3750V2 3750X switches. Our customers include Cisco resellers, system integrators, ICT companies, online retailers etc. Right now most of our sales are contributed by regular customers. Our CCIE headed technical team can provide network design, products installation and configuration, trouble shooting etc.More information, please view: http://www.3anetwork.com

Difference between network-clock-select and network-clock-participate

What is the difference between network-clock-select & network-clock-participate?

What’s the network-clock-participate

To allow the ports on a specified network module or voice/WAN interface card (VWIC) to use the network clock for timing, use the network-clock-participate command in global configuration mode. To restrict the device to use only its own clock signals, use the no form of this command.

network-clock-participate [slot slot-number | wic wic-slot | aim aim-slot-number]

no network-clock-participate [nm slot | wic wic-slot]

Usage Guidelines

This command is used for ATM segmentation and reassembly or digital signal processing and Cisco 3660, Cisco 3725, and Cisco 3745 routers.

This command applies to any network module with T1/E1 controllers to provide clocks from a central source (MIX module for the Cisco 3660) to the network module and to the port on the network module. Then that port can be selected as the clock source with the network-clock-select command to supply clock to other ports or network modules that choose to participate in network clocking with the network-clock-participate command. This command synchronizes the clocks for two ports.

On the Cisco 3700 series, you must use the network-clock-participate command and either the wic wic-slot keyword and argument or the slot slot-number keyword and argument.

What’s the network-clock-select

To name a source to provide timing for the network clock and to specify the selection priority for this clock source, use the network-clock-select command in global configuration mode. To cancel the network clock selection, use the no form of this command.

Cisco 2600 Series and Cisco 3660 with MIX Module

network-clock-select priority {t1 | e1} slot/port

no network-clock-select priority {t1 | e1} slot/port

Cisco MC3810

network-clock-select priority {serial 0 | system | bvm | controller}

no network-clock-select priority {serial 0 | system | bvm | controller}

Usage Guidelines

When an active clock source fails, the system chooses the next lower priority clock source specified by this command. When a higher-priority clock becomes available, the system automatically reselects the higher-priority clock source.

Cisco 2600 series, Cisco 3660, and Cisco 3700 series

This command is used on Cisco 2600 series and Cisco 2600XM with AIMs installed or on the Cisco 3660, Cisco 3725, or Cisco 3745 with Multiservice Interchange (MIX) modules installed. This command names a controller to provide clocking signals to the backplane, which then provides the names to all the network modules that are participating in network clocking.

Cisco MC3810

This command applies to Voice over Frame Relay, Voice over ATM, and Voice over HDLC on the Cisco MC3810. Use the network-clock-select command to establish the clock-selection priority when there are multiple sources of line (network) clocking in a Cisco MC3810. Possible sources of line clocking for the Cisco MC3810 are the BRI voice module (BVM), the multiflex trunk module (MFT), and a serial port configured for clock rate line.

Hope can you help to learn more about the Cisco networking products.

The most popular Cisco 2960 switch: WS-C2960S-48TS-L, WS-C2960-24TT-L, competitive price on 3anetwork.com.

Source: http://www.cisco.com/en/US/docs/ios/12_3/vvf_r/vrg_n1_ps1839_TSD_Products_Command_Reference_Chapter.html#wp1001437

WS-X6548-GE-TX VS WS-X6748-GE-TX

The difference between WS-X6548-GE-TX & WS-X6748-GE-TX

WS-X6548-GE-TX uses Centralized Bus Forwarding as opposed to CEF720 Bus Forwarding used on WS-X6748-GE-TX.

The CEF720 uses 2x20Gbps connection to the switch fabric, which on this case is the Sup Module (no need for a switch fabric module).

WS-X6548-GE-TX is only 1MB buffer per port while WS-X6748-GE-TX is 1.3MB buffer per port.

WS-X6548-GE-TX is a hybrid, it supports backplane connection in switch fabric or bus mode while WS-X6748-GE-TX can only support switch fabric.

Personally, I see WS-X6748-GE-TX, the module of choice if you have a Sup720 since it uses the ideal Bus Forwarding for this hardware.

WS-X6748-GE-TX: Supervisor Engine 720, 720-10GE and 2T-10GE.

The WS-X6748-GE-TX is not supported in the Catalyst 6503 switch chassis. The WS-X6748-GE-TX module can occupy any slot in any other Catalyst 6500 or Catalyst 6500-E chassis except the Catalyst 6513 chassis where the module must be installed in slots 9-13. The module does not power up when it is installed in slots 1-8.

WS-X6748-GE-TX ships with the WS-F6700-CFC daughter card factory-installed. The module can be upgraded in the field to support the WS-F6700-DFC3A, WS-F6700-DFC3B, WS-F6700-DFC3BXL, WS-F6700-DFC3C, WS-F6700-DFC3CXL, WS-F6K-DFC4-A, or the WS-F6K-DFC4-AXL daughter cards.

More related:

How To Recover Cisco Router Password

About Replacing WS-X6724-SFP 24 port Module

Cisco Switch IOS versions 2960S

Can I Add Cisco 2901 as MGCP Gateway to CUCM 7.2.1 Business Edition

I am in the process to buy a new Cisco 2901 ISR2 with a new generation T1/E1 card (VWIC3-1MFT-T1/E1) to replace our old Cisco 2811. The router has attached a PRI line for VoIP. The old 2811 is registered as a MGCP gateway to our CUCM. We have a CUCM 7.2.1 Business edition which is holding the entire company VoIP system.

My question is: can I register in CUCM the new 2901 as a MGCP gateway? In the drop-down list  (when I am trying to add the gateway) I cannot find the 2901 version of Cisco. Only 28xx. Does anyone have encounter this problem?

The answer:

Yes you can. You just need to upgrade that 7.1.2 to latest 7.1.5, otherwise the device model (which is newer than version 7.1.2) will not appear as an option, it is just not there in the database:

Table 4. Cisco products Unified Communications Routers with Cisco Unified Communications Manager Minimum System Requirements Using MGCP

http://www.cisco.com/en/US/prod/collateral/routers/ps10536/data-sheet-c78-729824_ps13303_Products_Data_Sheet.html