Cisco Catalyst 6500 Series Configuration Note

A-21
Catalyst 6500 Series Content Switching Module Configuration Note
OL-4612-01
Appendix A Configuration Examples
Backup Server Farm
Total connections = 0
# The two servers have failed the probe but the CSM has not yet refreshed the ARP table
# for them, so the servers are not yet shown in the failed state
WEBFARM2, type = SLB, predictor = RoundRobin
nat = SERVER
virtuals inservice = 1, reals = 2, bind id = 0, fail action = none
inband health config: <none>
retcode map = <none>
Probes:
PING, type = icmp
Real servers:
SERVER3, weight = 8, OPERATIONAL, conns = 0
SERVER4, weight = 8, OPERATIONAL, conns = 0
Total connections = 0
Cat6k-2# show mod csm 5 vserver detail
WEB, type = SLB, state = OUTOFSERVICE, v_index = 18
virtual = 10.20.221.100/32:80 bidir, TCP, service = NONE, advertise = FALSE
idle = 3600, replicate csrp = none, vlan = ALL, pending = 30, layer 4
max parse len = 2000, persist rebalance = TRUE
ssl sticky offset = 0, length = 32
conns = 0, total conns = 14
Default policy:
server farm = WEBFARM, backup = WEBFARM2 (no sticky)
sticky: timer = 0, subnet = 0.0.0.0, group id = 0
Policy Tot matches Client pkts Server pkts
-----------------------------------------------------
(default) 14 83 70
# The virtual server is displayed as out of service, even if it is configured with a
# backup server farm, which is healthy. This behaviour is useful if the backup server farm
# is configured as an HTTP redirect server farm to a different site and you are using some
# DNS-based GSLB method, where some connections are still being directed to the failed
# virtual server.
# If you want the CSM to consider the virtual server healthy and operational if the backup
# server farm is healthy, you just need to change an environmental variable.
Cat6k-2# sh mod csm 5 var
variable value
----------------------------------------------------------------
ARP_INTERVAL 300
ARP_LEARNED_INTERVAL 14400
ARP_GRATUITOUS_INTERVAL 15
ARP_RATE 10
ARP_RETRIES 3
ARP_LEARN_MODE 1
ARP_REPLY_FOR_NO_INSERVICE_VIP 0
ADVERTISE_RHI_FREQ 10
AGGREGATE_BACKUP_SF_STATE_TO_VS 0
DEST_UNREACHABLE_MASK 0xffff
FT_FLOW_REFRESH_INT 15
GSLB_LICENSE_KEY (no valid license)
HTTP_CASE_SENSITIVE_MATCHING 1
MAX_PARSE_LEN_MULTIPLIER 1
NAT_CLIENT_HASH_SOURCE_PORT 0
ROUTE_UNKNOWN_FLOW_PKTS 0
NO_RESET_UNIDIRECTIONAL_FLOWS 0
SYN_COOKIE_INTERVAL 3
SYN_COOKIE_THRESHOLD 5000
TCP_MSS_OPTION 1460

Cisco Catalyst 6500 Series Specifications

General

Brand	Cisco
Model	Catalyst 6500 Series
Category	Switch
Language	English