ACE: RDP loadbalancing connection problem
I have a problem setting up RDP loadbalancing.
My setup is a WS-C6509-E with IOS 12.2(33)SXI5 and a ACE20-MOD-K9 running
A2(3.3).
I have the ACE in two-arm-mode, I can connect to the real servers via RDP. The
real servers use a MS Terminal Server Session Broker with routing tokens.
The serverfarm is operational:
# show serverfarm FARM-TSFARM1 det
serverfarm : FARM-TSFARM1, type: HOST
total rservers : 4
active rservers: 4
description : srv-f1-tsX.mydomain.de
state : ACTIVE
predictor : ROUNDROBIN
failaction : -
back-inservice : 0
partial-threshold : 0
num times failover : 0
num times back inservice : 1
total conn-dropcount : 0
----------connections-----------
real weight state current total failures
---+---------------------+------+------------+----------+----------+---------
rserver: RS-SRV-F1-TS1
10.7.43.201:0 8 OPERATIONAL 0 1 0
description : -
max-conns : 500 , out-of-rotation count : 0
min-conns : 500
conn-rate-limit : - , out-of-rotation count : -
bandwidth-rate-limit : - , out-of-rotation count : -
retcode out-of-rotation count : -
load value : 0
rserver: RS-SRV-F1-TS2
10.7.43.202:0 8 OPERATIONAL 0 0 0
description : -
max-conns : 500 , out-of-rotation count : 0
min-conns : 500
conn-rate-limit : - , out-of-rotation count : -
bandwidth-rate-limit : - , out-of-rotation count : -
retcode out-of-rotation count : -
load value : 0
rserver: RS-SRV-F1-TS3
10.7.43.203:0 8 OPERATIONAL 0 0 0
description : -
max-conns : 500 , out-of-rotation count : 0
min-conns : 500
conn-rate-limit : - , out-of-rotation count : -
bandwidth-rate-limit : - , out-of-rotation count : -
retcode out-of-rotation count : -
load value : 0
rserver: RS-SRV-F1-TS4
10.7.43.204:0 8 OPERATIONAL 0 0 0
description : -
max-conns : 500 , out-of-rotation count : 0
min-conns : 500
conn-rate-limit : - , out-of-rotation count : -
bandwidth-rate-limit : - , out-of-rotation count : -
retcode out-of-rotation count : -
load value : 0
The service policy is active, it shows an increasing hit count for the VIP
connections (47 as shown below), no drop-count, no dropped connections, but
zero bytes server packets and no hit counts for the L7 policy:
# show service-policy VIP-TSFARM1 detail
Status : ACTIVE
Description: -----------------------------------------
Interface: vlan 44
service-policy: VIP-TSFARM1
class: VIP-TSFARM1-RDP
VIP Address: Protocol: Port:
10.7.44.106 tcp eq 3389
loadbalance:
L7 loadbalance policy: VIP-TSFARM1-RDP-l7slb
VIP Route Metric : 77
VIP Route Advertise : ENABLED-WHEN-ACTIVE
VIP ICMP Reply : ENABLED-WHEN-ACTIVE
VIP State: INSERVICE
curr conns : 0 , hit count : 47
dropped conns : 0
client pkt count : 221 , client byte count: 10996
server pkt count : 0 , server byte count: 0
conn-rate-limit : 0 , drop-count : 0
bandwidth-rate-limit : 0 , drop-count : 0
L7 Loadbalance policy : VIP-TSFARM1-RDP-l7slb
class/match : class-default
LB action: :
primary serverfarm: FARM-TSFARM1
state: UP
backup serverfarm : -
hit count : 0
dropped conns : 0
I never get a "Built TCP connection" syslog message.
When I make a VIP with "policy-map type loadbalance generic" instead of
"policy-map type loadbalance rdp" everything works as expected, apart from the
fact that users cannot be redirected to the correct server if they have an
active session on one of them.
Here is the config of the rdp setup:
rserver host RS-SRV-F1-TS1
description srv-f1-ts1.mydomain.de
ip address 10.7.43.201
conn-limit max 500 min 500
rate-limit connection 10000
rate-limit bandwidth 12500000
probe PING_PROBE
inservice
rserver host RS-SRV-F1-TS2
description srv-f1-ts2.mydomain.de
ip address 10.7.43.202
conn-limit max 500 min 500
probe PING_PROBE
inservice
rserver host RS-SRV-F1-TS3
description srv-f1-ts3.mydomain.de
ip address 10.7.43.203
conn-limit max 500 min 500
probe PING_PROBE
inservice
rserver host RS-SRV-F1-TS4
description srv-f1-ts4.mydomain.de
ip address 10.7.43.204
conn-limit max 500 min 500
probe PING_PROBE
inservice
serverfarm host FARM-TSFARM1
description srv-f1-tsX.mydomain.de
rserver RS-SRV-F1-TS1
inservice
rserver RS-SRV-F1-TS2
inservice
rserver RS-SRV-F1-TS3
inservice
rserver RS-SRV-F1-TS4
inservice
class-map match-all VIP-TSFARM1-RDP
2 match virtual-address 10.7.44.106 tcp eq 3389
policy-map type loadbalance rdp first-match VIP-TSFARM1-RDP-l7slb
class class-default
serverfarm FARM-TSFARM1
policy-map multi-match VIP-TSFARM1
class VIP-TSFARM1-RDP
loadbalance vip inservice
loadbalance policy VIP-TSFARM1-RDP-l7slb
loadbalance vip icmp-reply active
loadbalance vip advertise active
interface vlan 44
service-policy input VIP-TSFARM1
Any ideas?
Ralf,
You are running into the following defect:
http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtl63354
Workaround:
use a layer 4 loadbalance policy and configure source ip sticky.
Joel Lamousnery
Cisco TAC
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SAP B1 Version: SAP B1 9 (902001) Patch 9
SAP Crystal Report Version: 14.0.4.738 RTM
Database: MS SQL Server 2008 R2
I have also added some screenshots of the issues.
Please have a look and let me know if you have any questions or any further clarifications.
I m eagerly waiting for a quick and positive reply.Hi,
There is problem with SAP Business One date source.
I had faced same problem, I used OLEDB Data-source, and it worked fine for me.
So, try to use OLEDB.
Regards,
Amrut Sabnis.
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