Wednesday, May 13, 2015

Cisco 3650 Series Switch

Cisco Catalyst 3650 Series Switches are stackable access-layer switches that provide full wired and wireless convergence on a single platform. The Cisco Catalyst 3650 enables uniform wired-wireless policy enforcement, application visibility, flexibility, application optimization, and superior resiliency.
All Cisco Catalyst 3650 Series Switches have fixed, built-in uplink ports. The table below provides high-level comparisons of the different available models in the Catalyst 3650 Series Switch family. You may view all models with:
·               2 x 10 Gigabit
·               4 x Gigabit
·               4 x 10 Gigabit
All models can be purchased with LAN Base, IP Base, or IP Services software. Customers need to purchase the IP Base or the IP Services software-enabled models in order to gain wireless function.


2 x 10 Gigabit Ethernet with SFP+ (or 4 x Gigabit Ethernet with SFP) Uplinks
Models
Total 10/100/1000 Ethernet Ports
Default AC Power Supply
Available PoE Power
WS-C3650-24TD
24
250 WAC
-
WS-C3650-48TD
48
250 WAC
-
WS-C3650-24PD
24 PoE+
640 WAC
390 W
WS-C3650-48PD
48 PoE+
640 WAC
390 W
WS-C3650-48FD
48 PoE+
1025 WAC
775 W


4 x Gigabit Ethernet with Small Form-Factor Pluggable (SFP) Uplinks
Models
Total 10/100/1000 Ethernet Ports
Default AC Power Supply
Available PoE Power
24
250 WAC
-
48
250 WAC
-
24 PoE+
640 WAC
390 W
WS-C3650-48PS
48 PoE+
640 WAC
390 W
WS-C3650-48FS
48 PoE+
1025 WAC
775 W


4 x 10 Gigabit Ethernet with SFP+ (or 4 x Gigabit Ethernet with SFP) Uplinks
Models
Total 10/100/1000 Ethernet Ports
Default AC Power Supply
Available PoE Power
WS-C3650-48TQ
48
250 WAC
-
WS-C3650-48PQ
48 PoE+
640 WAC
390 W
WS-C3650-48FQ
48 PoE+
1025 WAC
775 W


Overview

 It is possible to have a combination of a pair of SFP modules (left two) and a pair of SFP+ modules(right two) on the 2 X 10G/4 X 1G uplink type of the Cisco Catalyst 3650. This combination provides up to 22 Gbps of uplink bandwidth.

There are no service modules for the Cisco Catalyst 3650. The Cisco Catalyst 3650 natively supports the features supported by the service module in the 3560-X. The Cisco Catalyst 3650 is hardware ready for MACsec, and software support will be added in a future release. Check release notes for availability.

The Cisco Catalyst 3650 comes with a 10/100/1000 Ethernet dedicated management port on the backside of the switch right below the console port. (See Figure 1.) This port is in a separate VRF called “Mgmt-vrf.” This is to segment the management traffic from the global routing table of the switch.

Cisco Catalyst 3650 Switch Rear Panel







         Online insertion and removal of the following are supported:
 Stack member switches in the stack
 Power supply and fans
 SFP/SFP+ modules
 Stack adapter and cables

Removing, and connecting to SFP transceiver modules
Hold the SFP transceiver module on the sides, and insert it into the SPF module slot on the switch until you feel the connector snap into place.
Note They can also be a combination of a pair of SFP modules slots on the left and a pair of SFP+ module slots on the right. SFP+ module slots support both SFP and SFP+ modules.


Connect an appropriate cable to the module port.


Stacking and High Availability

Cisco Catalyst 3650 is built with the advanced Cisco StackWise-160. It offers a stacking bandwidth of 160 Gbps nonblocking. The Cisco Catalyst 3650 requires a stacking kit that includes two data stack adapters and one stacking cable per switch to enable stacking. New StackWise-160 Modular Adapters and Stacking Cable


The Cisco Catalyst 3650 Series deployed in StackWise-160 mode provides the following set of benefits:
 Resilient: The Cisco Catalyst 3650 deployed in StackWise-160 mode enables the Cisco IOS Software SSO high-availability framework to deliver nonstop communication during fault conditions.
 Simplified: Single unified system to manage and operate up to 432 ports. StackWise-160 also simplifies network design and topologies in converged access.
 Scalable: No performance compromise. Each Cisco Catalyst 3650 switch deployed in StackWise-160 mode boosts wiring-closet performance with nonblocking 160-Gbps backplane and 40 Gbps on uplink ports.


Cisco Catalyst 3650 Series Switches support the following Layer 2 and Layer 3 network protocols:
 Layer 2 protocols: Cisco Discovery Protocol, Spanning Tree Protocol, VLAN Trunking Protocol (VTP), Link Aggregation Control Protocol (LACP), Port Aggregation Protocol Plus (PAgP+), Dynamic Trunking Protocol (DTP), Unidirectional Link Detection Protocol (UDLD)
 Mobility: Access Point management, CAPWAP data tunnel, CAPWAP mobility tunnel, CAPWAP multicast tunnels
 Layer 3 protocols: EIGRP, OSPF, IS-IS, BGP
 VRF-aware Layer 3 protocols: EIGRP, OSPF, IS-IS, BGP

The total access point count license of a Cisco Catalyst 3650 stack is equal to the sum of all the individual member access point count licenses, up to a maximum of 25 access points. When new members are added to the stack, the total access point count license of the stack is automatically recalculated. When members are removed from the stack, the access point count license does not decrement until a reload of the stack.
Stack member remove example: In the preceding example, if switch 4 is removed from the stack, the access point count license stays at 25 access points until the stack is reloaded. After being reloaded, the stack returns to its original value of 18 access points.
Stack member addition example: A Cisco Catalyst 3650 stack with 3 switches, each with an access point count license of 6 access points, will have support for a total of 18 access points. When a new Cisco Catalyst 3650 is added to the stack with an access point count license of 8 access points, the total access points supported by the stack equals 25, since the total 26 exceeds the stack limit.


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Tuesday, May 12, 2015

Do You Have a Good Knowledge about Your WS-C3650-24PS-S?

Cisco Catalyst WS-C3650-24PS-S is the next generation enterprise-level standalone with stackable option switch with IP Base image. WS-C3650-24PS-S has 24 Gigabit Ethernet POE+ ports with 4 fixed 1G SFP uplink ports and provides fully convergence between wired and wireless capacity on a single platform.

·24 * 10/100/1000 Ethernet POE+ ports with fixed 4 * 1G SFP uplinks
·IP base image with update option to IP service
·9 members stacking and up to 160Gbps of stack throughput
·Power redundant and fans redundant modular option
·4GB memory (DRAM) and 2GB flash
·Layer 3 routing features: OSPF stub, EIGRP stub, RIPv1, v2, PIM stub
·20G wireless bandwidth per switch, up to 25 APs and 1000 Wireless clients for each switching entity
·Support Cisco Aironet 1040/1140/1260/1600/2600/3500/3600/3700 series APs

·390W POE power budget with up to 30W per port

Dual Redundant Modular Power Supplies
The Cisco Catalyst 3650 Series Switches support dual redundant power supplies. The switch ships with one power supply by default, and the second power supply can be purchased at the time of ordering the switch or at a later time. If only one power supply is installed, it should always be in power supply bay 1. The switch also ships with three field-replaceable fans.
WS-C3650-24PS-S Dual Redundant Power Models


Models
Default Power Supply
Available PoE Power
24-port data switch
PWR-C2-250WAC
-
48-port data switch
24-port PoE switch
PWR-C2-640WAC
390 W
48-port PoE switch
48-port full PoE switch
PWR-C2-1025WAC
775 W



The solution is for the SP to use 802.1ad in their network. They assign a single, unique outer VLAN tag ID of 100 for Acme, and a unique outer VLAN ID of 101 for XYZ. All traffic sent from Acme A to the SP network will have a tag of ID=100 pushed. The inner tag will be either 10,11,12, the original Acme tag. The traffic will be sent through S12 in this format, and just before it exits WS-C3650-24PS-S bound for Acme B, all traffic will undergo a single pop operation, removing the outer VLAN tag with the ID 100. This pop operation is the inverse of the former push operation, with the net result of no change to the traffic. The traffic passes through the SP network as 802.1ad frames, but no 802.1ad frames are sent to or received from the customer.
A WS-C3650-24PS-S L2 connectivity to customers in the cities of Seattle and Tacoma. Two corporations, "Acme" and "XYZ", have a campus located in both Seattle and Tacoma. All campuses run Ethernet LANs, and the customers intend to connect through the SP's L2 VPN network so that their campuses are in the same LAN. The SP has two switches, one in Seattle, and one in Tacoma. The customers interface to the SP network in switches designated "A" and " WS-C3650-24PS-S ". Each customer has its own pair of A and B switches. Acme switch A is connected to S-Switch #1 through link "A1"; the rest of the links are labelled. S-Switch #1 and WS-C3650-24PS-S are connected by link S12.

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Wednesday, April 29, 2015

How to Enable IPv6 Support on a Cisco 3650 Switch?

Which ios will support IPv6 feature in WS-C3560G-48TS switch? I am having WS-C3560G-48TS switch with ios (c3560-ipbasek9-mz.122-58.E2.bin) and I am trying to use IPv6 feature in this switch model. More over I’ve upgraded this switch with many ios but none of them not supporting IPv6 feature. Could somebody please suggest me an ios which supports IPv6 feature?
How to enable ip v6 for 3750/3560 switch? We have 3750G and 3650G with IOS rel 12.2(50) SE3. According to Cisco document, these switches should support IP v4 and v6 dual-stack configuration (after 12.2SE). I have searched many Cisco IP v6 online help, but cannot figure out how to enable this feature. Such as, I tried to configure an interface with IP v6 addr, but it will not take “ip v6″ or “ipv6″.
—Two questions from Cisco Support Community.
If you have tried configuring IPv6 on a Cisco 3650 switch WS-C3650-48FS-L , you may have noticed the ipv6 commands aren’t available by default. This often catches us when we are working on a new switch that has never had IPv6 enabled.
Here we listed a brief how-to with some background info thrown in by a typical Cisco 3560 user.

Where the IPv6 are Commands Hiding?
Cisco 3650 switches have a feature called Switch Database Management (SDM) templates. There are various templates that can modify the allocation of system resources to better support different features. What does this mean? By default, a small catalyst switch is built to support 8 routed interfaces and 1024 VLANs. It’s not generally used to route OSPFv3 and BGP (though, it can do that). So as a result, the system resources are evenly distributed among the various functions to accommodate a common set of tasks.
My guess is since IPv6 addresses take up more space than IPv4 addresses, they were excluded from the default template to maximize v4 space. However, I would imagine future IOS releases will enable IPv6 support by default as it becomes more prevalent.
You can see the current SDM settings with the show sdm prefer command:
S1#show sdm prefer
 The current template is “desktop default” template.
 The selected template optimizes the resources in
 the switch to support this level of features for
 8 routed interfaces and 1024 VLANs.
  number of unicast mac addresses:                  6K
  number of IPv4 IGMP groups + multicast routes:    1K
  number of IPv4 unicast routes:                    8K
    number of directly-connected IPv4 hosts:        6K
    number of indirect IPv4 routes:                 2K
  number of IPv4 policy based routing aces:         0
  number of IPv4/MAC qos aces:                      0.75K
  number of IPv4/MAC security aces:                 1K
To see the list of available SDM templates, go to config mode and type sdm prefer? You can see dual stack ipv4/ipv6 support is one of the templates.
S1(config)#sdm prefer ?
  access              Access bias
  default             Default bias
  dual-ipv4-and-ipv6  Support both IPv4 and IPv6
  ipe                 IPe bias
  routing             Unicast bias
  vlan                VLAN bias
So, if you try to configure an IPv6 address on an interface without enabling the correct SDM, you get nothing:
S1(config-if)#ipv6 ?
% Unrecognized command

How do I enable IPv6 support on a Cisco 3560 switch?
To enable IPv6 support on the Cisco 3560 switch, you simply change the SDM template and reload. Start by enabling the dual-ipv4-and-ipv6 template with one of three sub-options:
S1(config)#sdm prefer dual-ipv4-and-ipv6 ?
  default  Default bias
  routing  Unicast bias
  vlan     VLAN bias
As you can see, you can decide to give more resources to routing or more to vlans when enabling IPv6 support. Since I’m using this switch in a lab to practice IPv6 routing protocols, I’m going to select the routing bias.
S1(config)#sdm prefer dual-ipv4-and-ipv6 routing
Changes to the running SDM preferences have been stored, but cannot take effect
until the next reload.
Use ‘show sdm prefer’ to see what SDM preference is currently active.
After a reload, here’s the resulting template change:
S1#show sdm prefer
 The current template is “desktop IPv4 and IPv6 routing” template.
 The selected template optimizes the resources in
 the switch to support this level of features for
 8 routed interfaces and 1024 VLANs.
  number of unicast mac addresses:                  1.5K
  number of IPv4 IGMP groups + multicast routes:    1K
  number of IPv4 unicast routes:                    2.75K
    number of directly-connected IPv4 hosts:        1.5K
    number of indirect IPv4 routes:                 1.25K
  number of IPv6 multicast groups:                  1.125k
  number of directly-connected IPv6 addresses:      1.5K
  number of indirect IPv6 unicast routes:           1.25K
  number of IPv4 policy based routing aces:         0.25K
  number of IPv4/MAC qos aces:                      0.75K
  number of IPv4/MAC security aces:                 0.5K
  number of IPv6 policy based routing aces:         0.25K
  number of IPv6 qos aces:                          0.5K
  number of IPv6 security aces:                     0.5K
And now if you try to configure an IPv6 address on an interface, the command will show up:
S1(config-if)#ipv6 address ?
  WORD                General prefix name
  X:X:X:X::X          IPv6 link-local address
  X:X:X:X::X/<0-128>  IPv6 prefix
  autoconfig          Obtain address using autoconfiguration
S1(config-if)#ipv6 address dead:beef:cafe::1/64
Finally, don’t forget to enable IPv6 unicast-routing globally if you want IPv6 packets to be forwarded.
S1(config)#ipv6 unicast-routing

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