6500overview

Catalyst 6500
Technical Training
Catalyst 6500 Supervisor 720 using Native IOS 12.2SX

Carl Solder
Technical Marketing Engineer
Internetworking Systems Business Unit
© 2004, Cisco Systems, Inc. All rights reserved. 1

January 2004
Catalyst 6500
Technical Training
CHAPTER 1: Introduction to the Catalyst 6500


Cisco Systems

CHAPTER 1.1 – Introduction to the Catalyst 6500

© 2004, Cisco Systems, Inc. All rights reserved.
3

Catalyst 6500 Family
Cisco Systems

Catalyst 6503 Catalyst 6506
3 slot chassis 6 slot chassis

Catalyst 6513
Catalyst 6509 13 slot chassis
9 slot chassis

Catalyst 6509-NEBS Catalyst 6509-NEBS-A
NEBS Compliant 9 slot chassis 9 slot chassis
4

Catalyst 6500 Supervisors
Cisco Systems
The Catalyst 6500 has three Supervisor options on offer
with each providing a different architectural backplane
configuration for line cards to connect into…

Supervisor 1A Supervisor 2 Supervisor 720 (NEW)

32Gb backplane supporting 256Gb backplane supporting 720Gb backplane supporting
hardware accelerated Layer 2 hardware accelerated Layer 2 hardware accelerated Layer 2
and 3, QoS and Security and 3, QoS and Security and 3, QoS and Security
policies up to 15Mpps… policies up to 210Mpps… policies up to 400Mpps…

Supervisor Options for the Catalyst 6500

5

Catalyst 6500 Linecards
Cisco Systems
The Catalyst 6500 has a family of linecards to suit all network needs…

10/100 TX and 100 Fiber 10/100/1000 TX GE SFP
L
C
I
A
N
T GE GBIC 10GE WAN
E
C
6
A
5 Optical Switch Modules Inline Power ATM
R
0
D
0
S
6

Catalyst 6500 Service Modules
Cisco Systems
Service Modules represent the next generation of intelligent modules for the Catalyst 6500. Each
module provides a high performance option, scalable and feature rich deployment options…
Firewall Module VPN Module Intrusion Detection

Content Switching SSL Network Management

Communications Media Content Services MWAN

7

Supervisor 720
Cisco Systems

Advanced Features
IPV4 and IPV6 CEF Based Switching
IPV6 Tunneling
IPV4 NAT and PAT in hardware
MPLS P/PE, VPN and TE
GRE and IP in IP Tunneling
WCCP V2
Supports 256K+ IPV4 routes
SUPERVISOR 720 Hardware Features Supports 128K+ IPV6 routes
Ingress/Egress Policing
Integrated 720-Gbps Switch Fabric User Based Rate Limiting
Integrated Policy Feature Card Hardware based classification
Integrated Multilayer Switch Feature Card Multipath URPF
Supports two external compact flash slots Bi-Directional PIM
Supports three external GE ports (2 active) Port Access Control lists
Supports Classic, Fabric and High Capacity modules and more…

8

Supervisor 720 MSFC3
Cisco Systems
Multilayer Switch Feature Card (MSFC) is a standard daughter card on the Supervisor 720

RP supports..

Running routing protocols
Address Resolution
Running ICMP
MSFC3 Manage Virtual interfaces
IOS configuration
and more…

SP supports…
The MSFC3 supports both the Switch Processor (SP) and
Route Processor (RP)…
Spanning Tree
Component Route Proc Switch Proc VLAN Trunking Protocol
SDRAM (Default/Max) 512Mb/1Gb 512Mb/1Gb CDP
Bootflash 64Mb 64Mb Pushing FIB to PFC,DFC
and more…
NVRAM 2Mb 2Mb
9

Supervisor 720 PFC3
Cisco Systems
Policy Feature Card (PFC) is a standard daughter card on the Supervisor 720

IPV4 CEF
IPV6 CEF
IPV6 Tunneling
PFC3 IPV4 NAT and PAT
MPLS VPN
MPLS P/PE
MPLS TE
GRE Tunneling
IP in IP Tunneling
Feature PFC3a PFC3b WCCP V2
256K IPV4 Routes
Routes (IPV4) 256Kb 800K 128K IPV6 Routes
Number of ACL‟s 512 4000 User Based Microflow Policing
ACE Counters No Yes Ingress and Egress Policing
Port Access Control Lists
MPLS Baseline Adds EoMPLS, IP
Multipath URPF
options, etc…
Bi Directional PIM
10

Supervisor 720 Switch Fabric
Cisco Systems
Integrated 720-Gbps Switch
Switch Fabric Fabric on the Supervisor 720

Clocks Fabric Channels at
either 20-Gbps or 8-Gbps
depending on connected
linecard

CEF256 and dCEF256
Slot Fabric Channels on 6503, 6506, 6513 Fabric connect in at 8-Gbps per
6509, 6509-NEBS, 6509-NEBSA Channels fabric channel
3 slot 6 slot 9 slot 13 Slot
Slot 1-3 2 per slot 2 per slot 2 per slot 1 per slot CEF720 and dCEF720
connect in at 20-Gbps per
Slot 4-6 - 2 per slot 2 per slot 1 per slot
fabric channel
Slot 7-8 - - 2 per slot 1 per slot
Slot 9 - - 2 per slot 2 per slot
Slot 9-13 - - - 2 per slot
11

Supervisor 720 Performance
Cisco Systems

IPV6 Centralized Forwarding
V6 to V6 20Mpps
V4 to V6 Tunneling 10Mpps
V6 to V4 Tunneling 10Mpps

IPV6 dCEF Forwarding
V6 to V6 25Mpps
IPV4 Centralized Forwarding dCEF (Up to) V4 to V6 Tunneling 16Mpps
L2/L3/L4 Switching 30Mpps 48Mpps V6 to V4 Tunneling 16Mpps
ACL‟s 30Mpps 48Mpps IPV4 Centralized Forwarding
Netflow 30Mpps 48Mpps MPLS 20-30Mpps
Policing 30Mpps 48Mpps
Marking 30Mpps 48Mpps
Performance numbers relate to
GRE 10Mpps 25Mpps
the Supervisor 720 for IPV4 and
NAT 20Mpps 48Mpps IPV6 where displayed…
PAT 12Mpps 25Mpps

12

Supervisor 720 Hardware Features
IPV6
Cisco Systems
IPV6 SOFTWARE FEATURES

IPV6 Addressing
ICMP for IPV6
DNS for IPV6
V6 MTU Path Discovery
SSH for IPV6
IPV6 HARDWARE FEATURES IPV6 Telnet
128K FIB entries IPV6 Traceroute
IPV6 Load Sharing up to 16 paths dCEF for IPV6
Etherchannel hash across 48 bits RIP for IPV6
IPV6 Policing/Netflow/Classification IS-IS for IPV6
STD and EXT V6 ACL‟s OSPF V3 for IPV6
IPV6 QoS lookups BGP for IPV6
IPV6 Multicast
V6 to V4 Tunneling
IPV6 Edge over MPLS (6PE) IPV6 function located
on PFC3
13

Route Processor Rate Limiters
Cisco Systems

While switching in hardware operates at millions of
pps, the Route Processor supports processing rates
in the „000‟s packets per second,. RP Rate limiters
have been introduced to limit the impact of traffic
flooding to the RP and swamping the CPU….

Data
Rate Limiters applied to…
Input and Output ACL traffic
CEF Receive Traffic
CEF Glean Traffic
MTU Failures
ICMP Redirect
VACL Logging
L3 Security Feature traffic MSFC
TTF failures
RPF Failures Supervisor 720

14

Generic Route Encapsulation
Cisco Systems

Generic Route Encapsulation and IP-in-IP Tunneling
is now supported in the PFC3 at hardware
accelerated speeds….

GRE Tunnel

GRE Performance is up to
10Mpps centralized and
up to 25Mpps de-centralized

15

Egress Policing
Cisco Systems

Egress Policing is now supported on egress….
Application of egress policer can be performed on a
routed (layer 3 port) or a VLAN switched Virtual
interface (SVI) – cannot be applied to a layer 2 port…

Egress Policer

O
I Data Data
Data Data U
N
Policing T Data
Data Data P
Engine P
U Data
Data Data U
T
T
Data

16

Network/Port Address Translation (NAT/PAT)
Cisco Systems

10.1.1.1 203.16.10.1 Data 201.1.14.22 203.16.10.1 Data

NAT
Sup720 Supports.. L3 Addressing information
Software Translation setup, then changed
Hardware-based IPV4 NAT & PAT
Up to 20 Mpps on the Sup720 L4 Addressing
PAT information changed

10.1.1.1 203.16.10.1 3010 80 Data 194.1.20.3 203.16.10.1 2001 80 Data

17

Multipath Unicast RPF (URPF)
Cisco Systems

Source IP: 10.1.10.5
Destination: 10.2.20.34

Source IP: 10.200.1.64
Destination: 10.2.20.34 6500 Routing Table
Prefix Next Hop Interface
10.1.0.0/16 10.1.1.1 gig 3/1
10.2.0.0/16 10.2.1.1 gig 3/2

Unicast Reverse Path Forwarding (uRPF) Check mitigates problems caused by spoofed or
malformed IP source addresses. uRPF will drop packets whose source address is not in the
local forwarding tables.

18

User Based Rate Limiting (UBRL)
Cisco Systems
Three types of Global Flow Masks that can be stored on Sup1a/2 in the Netflow table…

Destination-Only IP (default)
Source-Destination IP
Full-flow (Src IP, Dst IP, Protocol, Src Port, Dst Port) Microflow policing uses full flow

BUT ONLY ONE GLOBAL FLOWMASK CAN BE INSTALLED IN THE
SYSTEM AT ANY ONE TIME
NOW… Sup720 supports

1. Up to 2 flow masks in the system
2. Source only and destination only flow
masks in the PFC3

This new facility increases the capacity of Sup720 to store more entries in its Netflow
table… Allows different features that use the Netflow table to use different masks (i.e. IOS
SLB, NDE, TCP Intercept, Reflexive ACL‟s, WCCP and CBAC)
19

Traffic Management Only Available
User-Based Rate Limiting with a Sup720
Cisco Systems

Traffic from Dorms Traffic from Internet
Ingress Microflow policer Ingress Microflow policer
Applied to user ports(s) Applied to uplink ports
Source-only Flow mask Dest-only Flow mask
Use ACL to limit the scope of source IP Use ACL to limit the scope of
addresses to intended users destination IP addresses to intended
users

20

Bi Directional PIM
Cisco Systems
Support for Bi-Directional PIM in Hardware was announced on the Supervisor 720 and is available
on IOS. This feature adds the same capability on CatOS…

(*,G) (*,G) Source
RP (*,G)
(*,G)

(*,G) Receiver

Bidir-PIM has unconditional forwarding of source traffic
toward the RP upstream on the shared tree, but no
registering process for sources as in PIM-SM. These
modifications are necessary and sufficient to allow
forwarding of traffic in all routers solely based on the (*,
G) multicast routing entries. This feature eliminates any
source-specific state and allows scaling capability to an
arbitrary number of sources.
21

MPLS
Cisco Systems
MPLS applies to any Ethernet port on
the following linecards…

Classic Ethernet Line Cards

CEF256 Ethernet Line Cards
MPLS HARDWARE FEATURES
dCEF256 Ethernet Line Cards
Up to 1000 MPLS VPN‟s
MPLS VPN (RFC2457) on ANY Ethernet aCEF720 Ethernet Line Cards
port
MPLS Multicast VPN dCEF720 Ethernet Line Cards
MPLS Label Switch Router (LSR)
MPLS Label Edge Router (LER)
MPLS Traffic Engineering (TE)
MPLS Ethernet over MPLS (EoMPLS)
on PFC3b MPLS function located
DSCP to EXP Mapping on PFC3
22

Cisco Systems

CHAPTER 1.2 – Catalyst 6500 Architecture

23

Module Terminology Update
Cisco Systems

Classic
6000, 6100, 6200, 6300, 6400, & 6600 Series Modules; CSM, IDS/NAM (Original), FlexWAN

CEF256 (Single Fabric Channel) (Ethernet-based CEF256 can be upgrade to DFCx)
6500 Series, Optical Services Modules, Firewall, SSL, VPN, CMM, NAM-1, NAM-2, IDS-2

dCEF256 (Dual Fabric Channels)
6816 Module

aCEF720 (Dual Fabric Channels*)
6704 Module (*some future modules will a single fabric channel)

dCEF720 (Dual Fabric Channels)
6802 Module

24

Catalyst 6500 Architecture
with Supervisor 720
Cisco Systems

Forwarding
Tables 32-Gbps Switch Bus
32 32
MSFC
Classic CEF256 32 dCEF256 32
Linecard Linecard Linecard
PFC

Fabric
Arbitration
dCEF720 aCEF720 CEF720
Linecard 8 Linecard 8 8 Linecard
Net MGMT
NMP 20 20 20 20 20 20

Crossbar

Supervisor
25

Processors
Component Comparison
Cisco Systems

Sup2/ Sup720/
Component MSFC2 MSFC3
SP 250 MHz SP 600 MHz
CPU Speed
RP 300 MHz RP 600 MHz

SP 128MB/512MB SP 512MB/1GB
ECC SDRAM
default/maximum RP 128MB/512MB RP 512MB/1GB

SP 32MB SP 64MB
Bootflash
RP 16MB RP 64MB

SP 512KB SP 2MB
NVRAM
RP 512KB RP 2MB

26

Supervisor 720
Slot Requirements – 3 Slot Chassis
Cisco Systems

Slot 1 Supervisor 720 or Module

Slot 3 Module

Now dCEF
modules
are
supported
in the 3 slot
chassis!

27

Supervisor 720
Cisco Systems

Slot 1 Module

Slot 2 Module
Slot 3 Module
Slot 4 Module

28

Supervisor 720
Cisco Systems

Slot 1 Module

Slot 2 Module
Slot 3 Module
Slot 4 Module
Slot 7 Module
Slot 8 Module

Slot 9 Module

29

Supervisor 720
Cisco Systems

Slot 1 Module

Slot 2 Module
Slot 3 Module
Slot 4 Module
Slot 5 Module
Slot 6 Module

Slot 9 Module
Slot 10 Module
Slot 11 Module
Slot 12 Module
Slot 13 Module

30

交换矩阵
Cisco Systems

• Integrated Fabric
A SFM must be removed
9-slot
when using a Sup720 Slot 1 Slot 9
• Fabric channels run at
20 Gbps
Slot 2 Slot 8
Full Duplex, so 20 Gbps in /
20 Gbps out per channel
Two fabric channels Slot 3 Slot 7
allocated to each slot
40 Gbps/slot with dual
fabric channels Slot 4 Slot 6

• Total Switching Capacity
= 720 Gbps (Full Duplex
Operation)
31

Supervisor 720
Switch Fabric - Channel Allocation
Cisco Systems
• Two Channels per slot:
3 slot chassis (6503, 7603)
Slot 1
6513
6 slot chassis (6506, 7606) Slot 13
Slot 2
9 slot chassis (6509, 7609)
• 13 Slot chassis fabric Slot 3
channel allocation is the Slot 12
Slot 4
same as the SFM2
Slots 1 thru 8 receive a single Slot 5
fabric channel Slot 11
Slot 6
Slots 9 thru 13 receive dual
fabric channels Slot 7
Slot 10
• Fabric channels for xCEF256 Slot 8
modules will auto-sync to 8
Gbps

32

All numbers are presented
Catalyst 6500 Architecture in non-full duplex math
(engineering math) for
With Supervisor 720 consistency
Cisco Systems

Supervisor 30–400 Mpps
MSFC3 Routing Table Forwarding
Engine 720
Performance
Hardware Fwd
PFC3 Tables
aCEF720 Series dCEF720 Series
20

aCEF 20 20 Integrated
Engines Integrated DFC3
20 Switch Fabric 20

8
8
16 Gbps Switching Bus 8

Classic Series CEF256 Series dCEF256 Series
Optional Integrated
DFC3 DFC3
33

January 2004
Catalyst 6500
Technical Training
CHAPTER 2: IOS Architecture on the Supervisor 720


Cisco Systems

CHAPTER 2.1 – IOS Architecture

35

IOS Architecture
Cisco Systems
The Multilayer Switch Feature Card (MSFC3) on the Supervisor 720 contains both the Route
Processor (RP) and the Switch Processor (SP)…

Both the RP and the SP have their
SP Bootflash RP Bootflash own set of Flash memory
(referred to as bootflash)

Switch Processor

Route Processor
36

IOS Architecture
Switch Processor (SP)
Cisco Systems
Both the RP and SP perform distinct functions during both the booting of the operating system
and the ongoing operation of the switch…
The Switch Processor is physically located
MSFC3
on the MSFC

Logically considered as the Network
Switch Management Processor (NMP)
Processor
(SP) Dedicated CPU, DRAM, Flash and NVRAM

- The SP owns the switch at initial boot up
before handing over to the RP
- The SP runs all layer 2 operations like VTP,
Route Spanning Tree, Chassis and Power
Processor Management, etc
(RP) - Supports other Layer 2 features like CDP,
SPAN, Broadcast Suppression,
Etherchannel, etc
37

IOS Architecture
Route Processor (RP)
Cisco Systems
Both the RP and SP perform distinct functions during both the booting of the operating system
and the ongoing operation of the switch…
The Route Processor is physically located on
MSFC3
the MSFC

Logically considered as the MSFC
Switch
Processor Dedicated CPU, DRAM, Flash and NVRAM
(SP)
-The RP runs the Layer 3 routing protocols
like OSPF, EIGRP, BGP, etc
- Other layer 3 features like IPX and
Appletalk
Route
- Manages the user interface (CLI)
Processor
- All show and configuration commands are
(RP)
processed on the RP then sent to the SP for
execution

38

IOS Architecture
RP and SP Bootflash
Cisco Systems
The RP and the SP both have their own set of Bootflash…
SP Bootflash (64Mb) is used to store the boot image and is referred to as SUP-BOOTFLASH
during normal operation
RP Bootflash (64Mb) is referred to as BOOTFLASH during normal operation

MSFC3

SP RP

SP BOOTFLASH RP BOOTFLASH

6500# dir sup-bootflash:
Directory of sup-bootflash:/

1 -rw- 26672876 Sep 09 2003 23:13:50 s72033-ps-mz.122-14.SX1.bin

256417792 bytes total (229744640 bytes free)

39

IOS Architecture
RP and SP DRAM
Cisco Systems
The RP and the SP both have their own set of DRAM…
SP Bootflash (512Mb) is used to store the running configuration, the running IOS image, the
routing table, etc – the amount of SP and RP DRAM available can be seen using the following
commands…
MSFC3
SP RP

SP DRAM RP DRAM

6500# show version
<snip>
cisco Catalyst 6000 (R7000) processor with 458752K/65536K bytes of memory.

6500# remote command switch show version
<snip>
cisco Catalyst 6000 (R7000) processor with 458752K/65536K bytes of memory.

40

Cisco Systems

CHAPTER 2.2 – File Management

41

File Management
Cisco Systems
The IOS File System (IFS) provides for a single interface into all of the file systems on the
switch… The Supervisor 720 supports a number of those file systems and they can be seen in
the output of the following command…

6500# show file systems
File Systems:

Size(b) Free(b) Type Flags Prefixes
* 256417792 229744640 disk rw disk0:
- - disk rw disk1:
65536000 38191028 flash rw sup-bootflash:
24871548 0 opaque ro sup-microcode:
0 242043808 opaque wo sup-image:
129004 128388 nvram rw const_nvram:
1964024 1960429 nvram rw nvram:
- - opaque rw null:
- - opaque rw system:
- - network rw tftp:
65536000 65536000 flash rw bootflash:
- - network rw rcp:
- - network rw ftp:

42

File Management
Cisco Systems
Some of the major file systems that are used on the Supervisor 720 include…

FILESYSTEM DESCRIPTION
bootflash: Flash that is owned by the RP
slavebootflash: Flash memory owned by a redundant supervisor
sup-bootflash: Flash that is owned by the SP
disk0: The first compact flash slot on the Supervisor
slavedisk0: 1st CF slot on redundant Supervisor
disk1: The second compact flash slot on the Supervisor
slavedisk1: 2nd CF slot on a Redundant Supervisor
startup-config: Startup configuration located in NVRAM
running-config: Running configuration located in DRAM
nvram: The second compact flash slot on the Supervisor
slavenvram: NVRAM on a Redundant Supervisor
43

File Management Commands
Cisco Systems
Files stored on the file subsystems can be viewed using the “DIR” command…

1 -rw- 27344844 Jul 31 2003 10:03:54 s72033-pk9s-mz.122-14.SX.bin


The current default file system can be seen using the following …
6500# pwd
disk0:

The current default file system can be changed to another file system as follows …
6500# cd sup-bootflash:
6500# pwd
sup-bootflash:/

44

Cisco Systems
Information on specific files can be viewed as follows (filename of IOS shown in the
example)…

6500# dir disk0:
Directory of disk0:/

1 -rw- 26672876 Sep 09 2003 23:13:50 s72033-ps-mz.122-14.SX1.bin


6500# show file info disk0:s72033-ps-mz.122-14.SX1.bin
disk0:s72033-ps-mz.122-14.SX1.bin:
type is image (elf) []
file size is 26672876 bytes, run size is 26837656 bytes
Runnable image, entry point 0x80020000, run from ram

6500#

45

Delete Command
Cisco Systems
Files can be deleted by using the delete command and referencing the file system/filename …


2 -rw- 2553 Nov 06 2003 01:30:17 config1


6500# delete sup-bootflash:config1 DELETE COMMAND
Delete filename [config1]?
Delete sup-bootflash:config1? [confirm]




46

Undelete Command
Cisco Systems
Files can also be UNDELETED by using the undelete command and referencing the file index
number on that file subsystem …

6500# dir /all sup-bootflash:

2 -rw- 2553 Nov 06 2003 01:30:17 [config1]

65536000 bytes total (38188344 bytes free) Shows deleted file in brackets [ ]
6500# undelete 2 sup-bootflash: UNDELETE COMMAND

2 -rw- 2553 Nov 06 2003 01:30:17 config1
File is undeleted

47

Squeeze Command
Cisco Systems
To permanently remove a deleted file from the file subsystem, the SQUEEZE command must
be used …

6500# delete sup-bootflash:config1
Delete filename [config1]?
Delete sup-bootflash:config1? [confirm]

6500# squeeze sup-bootflash: SQUEEZE COMMAND
All deleted files will be removed. Continue? [confirm]
Squeeze operation may take a while. Continue? [confirm]

Squeeze of sup-bootflash complete
6500# dir /all sup-bootflash:



As can be seen in the final dir /all command, the config1 file is no longer located in this file
system…
48

Boot Command
Cisco Systems
To boot a native IOS image, the image can be loaded from one of two locations – either the
SUP-Bootflash, or from one of the two compact flash slots on the front panel of the
supervisor…

64Mb of SUP-Bootflash is
provided to hold IOS
images…

Two CF type II slots are
provided to hold CF cards
– these slots hold CF
cards up to 512Mb in size
and can also support the
IBM Microdrive

49

Boot Command
Cisco Systems
Multiple boot commands can appear in the configuration file – the system will attempt to
load the image identified by the first “boot” command and move through the list until it finds
an image it can load…

6500# show running
Building configuration...
<snip>
boot system flash disk0:s72033-psv-mz.122-17a.SX1.bin
boot system flash sup-bootflash:s72033-psv-mz.122-17a.SX.bin
boot system flash disk0:s72033-ps-mz.122-14.SX1.bin
boot system flash sup-bootflash:s72033-pk9s-mz.122-14.SX.bin
<snip>

NOTE – If the system fails to find a
valid image from the “BOOT” list it
will revert to ROMMON mode

50

Configuring a Supervisor 720
Boot Command
Cisco Systems
IOS images can be stored on the compact flash and used to boot the switch,.. The command to
allow the switch to boot from compact flash is the “boot” command shown below…

6500# show running
Building configuration... Should be the first boot
<snip> statement in the list
boot system flash disk0:s72033-ps-mz.122-14.SX1.bin
boot system flash sup-bootflash:s72033-pk9s-mz.122-14.SX.bin

The “BOOT SYSTEM FLASH” command can be used to identify the IOS image on the
compact flash slot that the switch should use to boot… on switch bootup you should see
the following…
System Bootstrap, Version 7.7(1)
Copyright (c) 1994-2003 by cisco Systems, Inc.
Cat6k-Sup720/SP processor with 524288 Kbytes of main memory

Autoboot executing command: "boot disk0:s72033-ps-mz.122-14.SX1.bin"

Self decompressing the image :
################################################]

51

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